S.M.Mathur. (2001). Guide to field geology (1st.). Prentice Hall.
Chicago Style aipamenaS.M.Mathur. Guide to Field Geology. 1st. New Delhi: Prentice Hall, 2001.
MLA aipamenaS.M.Mathur. Guide to Field Geology. 1st. Prentice Hall, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.