APA Style
Frimmel,F.H., Christman,R.F.. (1988).
Humic Substances and Their Role in the Environment .
:
John Wiley & Sons.
Chicago Style
Frimmel,F.H., Christman,R.F..
Humic Substances and Their Role in the Environment.
:
John Wiley & Sons,
1988.
Text.
MLA Style
Frimmel,F.H., Christman,R.F..
Humic Substances and Their Role in the Environment.
:
John Wiley & Sons,
1988.
Text.
Turabian Style
Frimmel,F.H., Christman,R.F..
Humic Substances and Their Role in the Environment.
:
John Wiley & Sons,
1988.
Print.