APA (7th ed.) Citation

Schäpers, P. (1989). Heinrich Siepmann.

Chicago Style (17th ed.) Citation

Schäpers, Petra. Heinrich Siepmann. Essen, 1989.

MLA (8th ed.) Citation

Schäpers, Petra. Heinrich Siepmann. 1989.

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