APA (7th ed.) Citation

Petzold, H. (1982). Birnensorten. Neumann Verlag.

Chicago Style (17th ed.) Citation

Petzold, Herbert. Birnensorten. Leipzig: Neumann Verlag, 1982.

MLA (8th ed.) Citation

Petzold, Herbert. Birnensorten. Neumann Verlag, 1982.

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