Gaya APA
Mitchell, J. K.. (1980).
Soil loss estimation .
:
John Wiley & Sons.
Gaya Chicago
Mitchell, J. K..
Soil loss estimation.
:
John Wiley & Sons,
1980.
Text.
Gaya MLA
Mitchell, J. K..
Soil loss estimation.
:
John Wiley & Sons,
1980.
Text.
Gaya Turabian
Mitchell, J. K..
Soil loss estimation.
:
John Wiley & Sons,
1980.
Print.