APA Style
Spencer, Edgar W.. (1977).
Introduction to the structure of the earth (Ed.2).
New York:
McGraw-Hill.
Chicago Style
Spencer, Edgar W..
Introduction to the structure of the earth.
Ed.2
New York:
McGraw-Hill,
1977.
Buku Teks.
MLA Style
Spencer, Edgar W..
Introduction to the structure of the earth.
Ed.2
New York:
McGraw-Hill,
1977.
Buku Teks.
Turabian Style
Spencer, Edgar W..
Introduction to the structure of the earth.
Ed.2
New York:
McGraw-Hill,
1977.
Buku Teks.