(1930). [Vlček, Jaroslav]. s.n.].
Chicago Style (17th ed.) Citation[Vlček, Jaroslav]. [S.l: s.n.], 1930.
MLA (9th ed.) Citation[Vlček, Jaroslav]. s.n.], 1930.
Warning: These citations may not always be 100% accurate.
APA (7th ed.) Citation
