TY - BOOK AU - Hardin,Garrett James TI - Biology, its principles and implications T2 - A series of biology texts AV - QH308 H258 PY - 1961/// CY - San francisco PB - W. H. Freeman KW - BiologĂ­a N1 - "the present work is the result of a natural evolution of biology: its human implications"; Contenido: introductory principles.- our plan de pendent woorld.- animals, including man.- heredity ER -