APA (7th ed.) Citation

Bewersdorff, U., & Rennert, H. (1960). Exlibris Helmut Rennert.

Chicago Style (17th ed.) Citation

Bewersdorff, Ullrich, and Helmut Rennert. Exlibris Helmut Rennert. [S. l, 1960.

MLA (9th ed.) Citation

Bewersdorff, Ullrich, and Helmut Rennert. Exlibris Helmut Rennert. 1960.

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