Cita APA (7a ed.)

Busch, H., & Hagelstange, R. (1972). Germany: Countryside, cities, villages, and people (29th ed.). Umschau.

Cita Chicago Style (17a ed.)

Busch, Harald, y Rudolf Hagelstange. Germany: Countryside, Cities, Villages, and People. 29th ed. Frankfurt: Umschau, 1972.

Cita MLA (9a ed.)

Busch, Harald, y Rudolf Hagelstange. Germany: Countryside, Cities, Villages, and People. 29th ed. Umschau, 1972.