APA引文

Spencer, E. W. (1989). Introduction to the Structure of the Earth (3rd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Spencer, Edgar W. Introduction to the Structure of the Earth. 3rd ed. New York: McGraw-Hill, 1989.

MLA引文

Spencer, Edgar W. Introduction to the Structure of the Earth. 3rd ed. McGraw-Hill, 1989.