APA (7th ed.) Citation

Westphal, E., & Quenzer, G. (1969). Schwarzer Sommer (1. Auflage.). Rütten & Loening.

Chicago Style (17th ed.) Citation

Westphal, Eric, and Gerlinde Quenzer. Schwarzer Sommer. 1. Auflage. Berlin: Rütten & Loening, 1969.

MLA (8th ed.) Citation

Westphal, Eric, and Gerlinde Quenzer. Schwarzer Sommer. 1. Auflage. Rütten & Loening, 1969.

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