APA Style
Pearl, Richard M.,. (1960).
Geology : An Introduction to principles of physical and historical geology .
New York:
Barnes & Noble.
Chicago Style
Pearl, Richard M.,.
Geology : An Introduction to principles of physical and historical geology.
New York:
Barnes & Noble,
1960.
Text.
MLA Style
Pearl, Richard M.,.
Geology : An Introduction to principles of physical and historical geology.
New York:
Barnes & Noble,
1960.
Text.
Turabian Style
Pearl, Richard M.,.
Geology : An Introduction to principles of physical and historical geology.
New York:
Barnes & Noble,
1960.
Print.