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Por qué amamos – Helen Fisher

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49 Hopkins 1994, p. 87.<br />

HELEN FISHER<br />

50 Buss 1994; Buunky Hupka 1987.<br />

51 Collins y Gregor 1995.<br />

5 2 Cancianl987.<br />

s3 Yutang 1954, p. 73.<br />

54 Hopkins 1994, p. 18.<br />

55 Tennovl979.<br />

5 6 Flexnorl965.<br />

57 Piatön 1999, p. 40.<br />

58 Marazziti etal. 1999.<br />

59 Tesser y Reardon 1981.<br />

60 Random House Treasury, p. 321.<br />

61 HatfieldyWalsterl978.<br />

62 Darwin 1872/1965.<br />

1 Darwin 1871/sin fecha, p. 745.<br />

2 Ibid., p. 744.<br />

3 Moss 1988, p. 118.<br />

4 Ryden 1989, p. 147.<br />

5 King 1990, p. 127.<br />

6 Penny 1988, p. 28.<br />

7 Harrington y Paquet, 1982, p. v.<br />

8 Mech 1970, p. 112.<br />

9 Darwin 1871/ sin fecha, p. 674.<br />

10 Smuts 1985, pp. 4-5.<br />

11 Tinbergen 1959, p. 29.<br />

12 DaggyFosterl976, p. 129.<br />

13 Schauer 1973, p. 78.<br />

14 Mossl988, p.115.<br />

15 Galdikas 1995, pp. 144-145.<br />

16 Schaller, 1973, p. 79.<br />

17 Sankhala 1977, p. 67.<br />

18 Churchfield 1991, p. 27.<br />

2<br />

MAGNETISMO ANIMAL<br />

267

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