Teacher's study guide on the biology of human population.
- Paris : Unesco P., 1975.
- 438 p. : 8 p. plates: ill., diagrs., maps, graphs.
Issued a;lso in French and Spanish.
9231012797
Human biology ---study and teaching (Secondary) ---Collected works Human ecology ---study and teaching (Secondary) ---Collected works Population - --study and teaching (Secondary) ---Collected works Biology ---study and teaching (Secondary) ---Collected works