APA (7th ed.) Citation

Broska, I., & Petrík, I. Permian A-type Hrončok granite.

Chicago Style (17th ed.) Citation

Broska, Igor, and Igor Petrík. Permian A-type Hrončok Granite.

MLA (9th ed.) Citation

Broska, Igor, and Igor Petrík. Permian A-type Hrončok Granite.

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