APA (7th ed.) Citation

Lydolph, P. E. (1977). Geography of the USSR (3. ed.). Wiley.

Chicago Style (17th ed.) Citation

Lydolph, Paul E. Geography of the USSR. 3. ed. New York [u.a.]: Wiley, 1977.

MLA (9th ed.) Citation

Lydolph, Paul E. Geography of the USSR. 3. ed. Wiley, 1977.