APA aipamena

R K Sinha. (2019). Mineral Economics (4th.). CBS.

Chicago Style aipamena

R K Sinha. Mineral Economics. 4th. NewDelhi: CBS, 2019.

MLA aipamena

R K Sinha. Mineral Economics. 4th. CBS, 2019.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.