APA aipamena

Dennen, W. H. B. a. W. H. Principles of mineralogy. Wm.C. Brown.

Chicago Style aipamena

Dennen, William H. Blackburn and William H. Principles of Mineralogy. Wm.C. Brown.

MLA aipamena

Dennen, William H. Blackburn and William H. Principles of Mineralogy. Wm.C. Brown.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.