APA (7th ed.) Citation

Guld. (1931). [Štefánik, Igor]. s.n.].

Chicago Style (17th ed.) Citation

Guld. [Štefánik, Igor]. [S.l: s.n.], 1931.

MLA (9th ed.) Citation

Guld. [Štefánik, Igor]. s.n.], 1931.

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