APA引文

Sanders, J. E. (1981). Principles of physical geology. John willey &sons.

Chicago Edition Citation

Sanders, John E. Principles of Physical Geology. New york: John willey &sons, 1981.

MLA引文

Sanders, John E. Principles of Physical Geology. John willey &sons, 1981.

警告：這些引文格式不一定是100％准確.