Gaya APA
De Ploey, J.. (1980).
Measuring soil loss and experimental studies .
:
John Wiley & Sons.
Gaya Chicago
De Ploey, J..
Measuring soil loss and experimental studies.
:
John Wiley & Sons,
1980.
Text.
Gaya MLA
De Ploey, J..
Measuring soil loss and experimental studies.
:
John Wiley & Sons,
1980.
Text.
Gaya Turabian
De Ploey, J..
Measuring soil loss and experimental studies.
:
John Wiley & Sons,
1980.
Print.