APA-viite (7. p.)

Obot, E. A., & Sanford., W. (2014). Studies on the Productivity of Echinochloa Stagnina (Retz) P. Beauv. in the Kanji Lake Basin of Northern Nigeria. Obafemi Awolowo University.

Chicago-viite (17. p.)

Obot, Emmanuel Asuquo, ja W.W Sanford. Studies on the Productivity of Echinochloa Stagnina (Retz) P. Beauv. in the Kanji Lake Basin of Northern Nigeria. Obafemi Awolowo University, 2014.

MLA-viite (9. p.)

Obot, Emmanuel Asuquo, ja W.W Sanford. Studies on the Productivity of Echinochloa Stagnina (Retz) P. Beauv. in the Kanji Lake Basin of Northern Nigeria. Obafemi Awolowo University, 2014.