APA Style
Ries, H.,. (1937).
Economic geology (7th ed.).
New York:
John Wiley & Sons.
Chicago Style
Ries, H.,.
Economic geology.
7th ed.
New York:
John Wiley & Sons,
1937.
Text.
MLA Style
Ries, H.,.
Economic geology.
7th ed.
New York:
John Wiley & Sons,
1937.
Text.
Turabian Style
Ries, H.,.
Economic geology.
7th ed.
New York:
John Wiley & Sons,
1937.
Print.