APA (7th ed.) Citation

Shopov, Y. Y. Bulgarian cave minerals. /Bulharské jaskynné minerály.

Chicago Style (17th ed.) Citation

Shopov, Y. Y. Bulgarian Cave Minerals. /Bulharské Jaskynné Minerály.

MLA (9th ed.) Citation

Shopov, Y. Y. Bulgarian Cave Minerals. /Bulharské Jaskynné Minerály.

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