APA (7th ed.) Citation

Langhans, J. (1919). [Masaryk, Jan]. s.n.].

Chicago Style (17th ed.) Citation

Langhans, Jan. [Masaryk, Jan]. [S.l: s.n.], 1919.

MLA (9th ed.) Citation

Langhans, Jan. [Masaryk, Jan]. s.n.], 1919.

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