APA-referens (7:e uppl.)

Obi, A. O., & Adepetu, J. A. (2015). Response of Two Lowland Rice Varieties to N, P and a Combination of Other Nutrients in a Flooded Soil. Faculty of Agriculture, University of Ife.

Chicago-referens (17:e uppl.)

Obi, A. O., och J. A. Adepetu. Response of Two Lowland Rice Varieties to N, P and a Combination of Other Nutrients in a Flooded Soil. Faculty of Agriculture, University of Ife, 2015.

MLA-referens (9:e uppl.)

Obi, A. O., och J. A. Adepetu. Response of Two Lowland Rice Varieties to N, P and a Combination of Other Nutrients in a Flooded Soil. Faculty of Agriculture, University of Ife, 2015.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.