The future imperative for the human environment /
Palmstierna, H.
The future imperative for the human environment / Prof. H. Palmst ierna. - New York : United Nations, 1972. - 24 p. ; 25 cm.
Human ecology.
The future imperative for the human environment / Prof. H. Palmst ierna. - New York : United Nations, 1972. - 24 p. ; 25 cm.
Human ecology.