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

Библиографические подробности
Соавтор:	Unesco
Формат:	‌
Язык:	English
Опубликовано:	Paris Unesco Press 1975-
Предметы:	Human biology > Study and teaching (Secondary). Human ecology > Study and teaching (Secondary). Population > Study and teaching (Secondary). Biology > Study and teaching (Secondary).