APA (7th ed.) Citation

Stanek, J. (1920). [Ruppeldt, Fedor Fridrich]. s.n.].

Chicago Style (17th ed.) Citation

Stanek, J. [Ruppeldt, Fedor Fridrich]. [S.l: s.n.], 1920.

MLA (9th ed.) Citation

Stanek, J. [Ruppeldt, Fedor Fridrich]. s.n.], 1920.

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