APA ציטוט

Nelson, C. A., & Zumberge, J. H. (1972). Elements of geology (3.). John Wiley and Sons.

Chicago Edition Citation

Nelson, C A., and J H. Zumberge. Elements of Geology. 3. New York: John Wiley and Sons, 1972.

ציטוט MLA

Nelson, C A., and J H. Zumberge. Elements of Geology. 3. John Wiley and Sons, 1972.