APA (7th ed.) Citation

Schmidt, E., & Ambur, P. (1973). Ex Libris Paul Ambur.

Chicago Style (17th ed.) Citation

Schmidt, Eugen, and Paul Ambur. Ex Libris Paul Ambur. Leipzig, 1973.

MLA (9th ed.) Citation

Schmidt, Eugen, and Paul Ambur. Ex Libris Paul Ambur. 1973.

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