APA (7th ed.) Citation

Friedová, L., & Plocháňová, B. Drahokam. Hore-dole.

Chicago Style (17th ed.) Citation

Friedová, Libuša, and Božena Plocháňová. Drahokam. Hore-dole.

MLA (9th ed.) Citation

Friedová, Libuša, and Božena Plocháňová. Drahokam. Hore-dole.

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