Ecology man's effect on his environment and its mechanisms

Sonraí bibleagrafaíochta
Príomhchruthaitheoir:	Hoke, John
Rannpháirtithe:	Cuffari, Richard
Formáid:	LEABHAR
Teanga:	Béarla
Foilsithe / Cruthaithe:	New York Franklin Watts c1971.
Sraith:	A First book
Ábhair:	Ecology > Juvenile literature. Nature > Effects of human beings on > Juvenile literature. Nature > Effects of human beings on.