APA (7th ed.) Citation

Watanabe, I. (1991). Biological nitrogen fixation in sustainable rice farming.

Chicago Style (17th ed.) Citation

Watanabe, Iwao. Biological Nitrogen Fixation in Sustainable Rice Farming. 1991.

MLA (9th ed.) Citation

Watanabe, Iwao. Biological Nitrogen Fixation in Sustainable Rice Farming. 1991.

Warning: These citations may not always be 100% accurate.