Gaya APA

ARCHER, A, L, G, S, I. (1987). Man's dependence on the earth: the role of the geosciences in the environment . : Unesco & Unep.

Gaya MLA

ARCHER, A.A.;, LUTTIG,, G.W.;, SNEZHKO,, I.I.. "Man's dependence on the earth: the role of the geosciences in the environment". : Unesco & Unep, 1987. Buku.