APA Citation

Ryabchikov, A. (1975). the changing face of the earth. Moscow: Progress.

Chicago Style Citation

Ryabchikov, A. The Changing Face of the Earth. Moscow: Progress, 1975.

MLA Citation

Ryabchikov, A. The Changing Face of the Earth. Moscow: Progress, 1975.

Warning: These citations may not always be 100% accurate.