APA Style
Skinner, Brian J., Porter, Stephen C.. (1987).
Physical Geology .
New York:
John Wiley & Sons.
Chicago Style
Skinner, Brian J., Porter, Stephen C..
Physical Geology.
New York:
John Wiley & Sons,
1987.
Text.
MLA Style
Skinner, Brian J., Porter, Stephen C..
Physical Geology.
New York:
John Wiley & Sons,
1987.
Text.
Turabian Style
Skinner, Brian J., Porter, Stephen C..
Physical Geology.
New York:
John Wiley & Sons,
1987.
Print.