Cita APA (7th ed.)

BETEKHTIN, A. A Course of minerology. Peace.

Cita Chicago (17th ed.)

BETEKHTIN, A. A Course of Minerology. Moscow: Peace.

Cita MLA (9th ed.)

BETEKHTIN, A. A Course of Minerology. Peace.

Atenció: Aquestes cites poden no estar 100% correctes.