APA ציטוט
Lutgens, F. K., & Tarbuck, E. J. (1986). Essentials of geology (2nd ed.). C.E. Merrill.
Chicago Style (17th ed.) Citation
Lutgens, Frederick K., and Edward J. Tarbuck. Essentials of Geology. 2nd ed. Columbus, Ohio: C.E. Merrill, 1986.
ציטוט MLA
Lutgens, Frederick K., and Edward J. Tarbuck. Essentials of Geology. 2nd ed. C.E. Merrill, 1986.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.