Teacher's study guide on the biology of human populations.

Dades bibliogràfiques
Autor corporatiu:	Unesco
Format:	Llibre
Idioma:	English
Publicat:	Paris Unesco Press 1975-
Matèries:	Human biology > Study and teaching (Secondary). Human ecology > Study and teaching (Secondary). Population > Study and teaching (Secondary). Biology > Study and teaching (Secondary).