Gaya APA
Buurman, P.. (1990).
Land unit classification for the reconnaissance soil survey of Sumatera .
Bogor:
Center for Soil and Agroclimate Research.
Gaya Chicago
Buurman, P..
Land unit classification for the reconnaissance soil survey of Sumatera.
Bogor:
Center for Soil and Agroclimate Research,
1990.
Text.
Gaya MLA
Buurman, P..
Land unit classification for the reconnaissance soil survey of Sumatera.
Bogor:
Center for Soil and Agroclimate Research,
1990.
Text.
Gaya Turabian
Buurman, P..
Land unit classification for the reconnaissance soil survey of Sumatera.
Bogor:
Center for Soil and Agroclimate Research,
1990.
Print.