APA ציטוט

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

Chicago Style (17th ed.) Citation

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

ציטוט MLA

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