Gaya APA
Edward , J. Plaster. (2003).
Soil science & management (edisi -4).
New York:
Thomson Delmar Learning.
Gaya Chicago
Edward , J. Plaster.
Soil science & management.
edisi -4
New York:
Thomson Delmar Learning,
2003.
Text.
Gaya MLA
Edward , J. Plaster.
Soil science & management.
edisi -4
New York:
Thomson Delmar Learning,
2003.
Text.
Gaya Turabian
Edward , J. Plaster.
Soil science & management.
edisi -4
New York:
Thomson Delmar Learning,
2003.
Print.