X. Citing Reference SourcesIn certain cases AACR and the LCRIs require the cataloger to search reference sourcesbeyond the work in hand. Examples: Headings for persons, LCRI 22.3B2 (Names invernacular and Greek or Latin forms), 22.3C ("well established in English-language referencesources"), and 22.13B (saints); and geographic names, LCRI 23.2.Further research is also needed to resolve conflicts. This will be especially important forcommon names and geographic names.A. When doing extra research, record the information in a 670 field and take the informationinto account when formulating the heading.B. Use abbreviations when citing standard reference sources, including a year <strong>of</strong> publicationor edition. Include location <strong>of</strong> data found unless the reference source is a strictlyalphabetized source, such as the Dictionary <strong>of</strong> American Biography, Who Was Who, or anencyclopedia. When using abbreviations, make sure they are understandable.Examples:670 $a Nat. fac. dir., 1987 $b (Elizabeth Jackson Hall; Loyola University Chicago,Ph.D., 1976; philosophy pr<strong>of</strong>., Loyola University Chicago)670 $a Brockhaus, 1974: $b Bd. 19, p. 823 (under Walkenried: ZisterzienserabteiW.; founded 1127)670 $a New Cath. enc. $b (Guibert <strong>of</strong> Gembloux; Benedictine abbot; b. ca. 1125; d.Feb. 22, 1213; became abbot <strong>of</strong> Gembloux, 1193)670 $a DAB $b (Adolph Papageorge Falcón; b. Mar. 16, 1963, Corpus Christi, Tex.;A.B., Yale Univ., 1985; M.P.P., Harvard Univ., 1987)670 $a Martindale-Hubbell, 1992: $b v. 6, p. IL311P (Bruce, Joseph J.; b. 1952)670 $a Baker, 8th ed. $b (Loewengard, Max Julius; b. Oct. 2, 1860, Frankfurt amMain; d. Nov. 19, 1915, Hamburg; German writer on music, teacher, andcomposer)54
XI. Citing the National Union Catalog (NUC)Catalogers may need to consult the NUC when seeking additional information about aheading. Note that headings found in the NUC are not considered authoritative pre-AACR2headings. If, however, the <strong>NACO</strong> member has genuine cause to search the NUC or NUCpre-1956 (primarily for resolving a conflict) and finds useful additional information, he shouldrecord the information found in a 670 field and in the 1XX, if appropriate.Examples:100 1 $a Hunt, John, $d 1775-1848670 $a Report <strong>of</strong> the proceedings on an information filed ex <strong>of</strong>ficio ... 1811: $b t.p.(John Hunt)670 $a NUC pre-56 $b (Hunt, John, 1775-1848)100 1 $a Cater, Katherine, $d 1945-670 $a Legal research for librarians, 1968: $b t.p. (Katherine Cater)670 $a NUC 1968-72 $b (Cater, Katherine, 1945- )55