The World environment 1972-1992 :
COnyango.
The World environment 1972-1992 : two decades of challenge / Edited by Mostafa K. Tolba. - London : Chapman & Hall, c1992. - 884 p. : ill.
Includes index.
0412470004
Environmental protection.
Human ecology.
GF50 / .T66
The World environment 1972-1992 : two decades of challenge / Edited by Mostafa K. Tolba. - London : Chapman & Hall, c1992. - 884 p. : ill.
Includes index.
0412470004
Environmental protection.
Human ecology.
GF50 / .T66