APA Style
ELEMENTS OF SOIL CONSERVATION. (2002).
CANADA:
McGraw Hill.
Chicago Style
ELEMENTS OF SOIL CONSERVATION.
SECOND EDITION.
CANADA:
McGraw Hill,
2002.
Buku Teks.
MLA Style
ELEMENTS OF SOIL CONSERVATION.
SECOND EDITION.
CANADA:
McGraw Hill,
2002.
Buku Teks.
Turabian Style
ELEMENTS OF SOIL CONSERVATION.
CANADA:
McGraw Hill,
2002.
Buku Teks.