APA Citation

Güthling, W. (1960). Erich Philipp Ploennies. Düsseldorfer Jahrbuch ; 50.

Chicago Style Citation

Güthling, Wilhelm. "Erich Philipp Ploennies." Düsseldorfer Jahrbuch ; 50 1960.

MLA Citation

Güthling, Wilhelm. "Erich Philipp Ploennies." Düsseldorfer Jahrbuch ; 50 1960.

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