Gaya APA
Uphoff, Norman Thomas. (2006).
Biological approaches to sustainable soil systems .
Boca Raton:
Taylor & Francis Group.
Gaya Chicago
Uphoff, Norman Thomas.
Biological approaches to sustainable soil systems.
Boca Raton:
Taylor & Francis Group,
2006.
Text.
Gaya MLA
Uphoff, Norman Thomas.
Biological approaches to sustainable soil systems.
Boca Raton:
Taylor & Francis Group,
2006.
Text.
Gaya Turabian
Uphoff, Norman Thomas.
Biological approaches to sustainable soil systems.
Boca Raton:
Taylor & Francis Group,
2006.
Print.