APA引文

OJAKANGAS, R. W. (1991). Theory and problems of introductory geology. McGraw Hill.

Chicago Style (17th ed.) Citation

OJAKANGAS, Richard W. Theory and Problems of Introductory Geology. New York: McGraw Hill, 1991.

MLA引文

OJAKANGAS, Richard W. Theory and Problems of Introductory Geology. McGraw Hill, 1991.

警告：這些引文格式不一定是100％准確.