TY  - BOOK
AU  - Huntington,Ellsworth
TI  - Mainsprings of civilization
T2  - A Mentor book,
AV  - GF 31 H81.1964
PY  - 1964///, c1945]
CY  - [New York]
PB  - New American Library
KW  - Human beings
KW  - Effect of environment on
KW  - Seres humanos
KW  - Efecto del medio ambiente sobre
KW  - Heredity, Human
KW  - Herencia humana
KW  - Evolution
KW  - Evolución
N1  - This ed. first published 1959; Bibliografía: p. 618-636
ER  -