APA Style
Graham, Peter H., Harris, Susan C.. (1981).
Biological nitrogen fixation technology for tropical agriculture .
colombia:
Centro International the Agriculture Tropical.
Chicago Style
Graham, Peter H., Harris, Susan C..
Biological nitrogen fixation technology for tropical agriculture.
colombia:
Centro International the Agriculture Tropical,
1981.
Text.
MLA Style
Graham, Peter H., Harris, Susan C..
Biological nitrogen fixation technology for tropical agriculture.
colombia:
Centro International the Agriculture Tropical,
1981.
Text.
Turabian Style
Graham, Peter H., Harris, Susan C..
Biological nitrogen fixation technology for tropical agriculture.
colombia:
Centro International the Agriculture Tropical,
1981.
Print.