APA (7th ed.) Citation

Schön, G. (1988). World coin catalogue, twentieth century (6th ed.). Amos Press.

Chicago Style (17th ed.) Citation

Schön, Günter. World Coin Catalogue, Twentieth Century. 6th ed. Sidney, Ohio: Amos Press, 1988.

MLA (9th ed.) Citation

Schön, Günter. World Coin Catalogue, Twentieth Century. 6th ed. Amos Press, 1988.