Gaya APA
Booker tropical soil manual: a handbook for soil survey and agricultur. (1984).
New York:
Booker Agriculture International.
Gaya Chicago
Booker tropical soil manual: a handbook for soil survey and agricultur.
.
New York:
Booker Agriculture International,
1984.
Tesis.
Gaya MLA
Booker tropical soil manual: a handbook for soil survey and agricultur.
.
New York:
Booker Agriculture International,
1984.
Tesis.
Gaya Turabian
Booker tropical soil manual: a handbook for soil survey and agricultur.
New York:
Booker Agriculture International,
1984.
Tesis.