Gaya APA
Proceedings of the fourth International Conference of the....(Ibadan, Negeria, 24-28 Seot 1990). (1990).
Biological nitrogen fixation and sustainability of tropical agriculture .
Singapore:
John Wiley & Sons.
Gaya Chicago
Proceedings of the fourth International Conference of the....(Ibadan, Negeria, 24-28 Seot 1990).
Biological nitrogen fixation and sustainability of tropical agriculture.
Singapore:
John Wiley & Sons,
1990.
Text.
Gaya MLA
Proceedings of the fourth International Conference of the....(Ibadan, Negeria, 24-28 Seot 1990).
Biological nitrogen fixation and sustainability of tropical agriculture.
Singapore:
John Wiley & Sons,
1990.
Text.
Gaya Turabian
Proceedings of the fourth International Conference of the....(Ibadan, Negeria, 24-28 Seot 1990).
Biological nitrogen fixation and sustainability of tropical agriculture.
Singapore:
John Wiley & Sons,
1990.
Print.