World population :
Piotrow, Phyllis Tilson.
World population : the present and future crisis / - [New York, N.Y.] : Foreign Policy Association, [1980] - 80 p. : ill. ;
Cover title.
0871240645 (pbk.) :
Population.
E744 HB871
World population : the present and future crisis / - [New York, N.Y.] : Foreign Policy Association, [1980] - 80 p. : ill. ;
Cover title.
0871240645 (pbk.) :
Population.
E744 HB871