APA-referens (7:e uppl.)

OSINAME, O. (2020). Effects of Phosphorus and Zinc on Maize and Cowpea grown on Alfisols in Sourthern Nigeria. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria.

Chicago-referens (17:e uppl.)

OSINAME, O.A. Effects of Phosphorus and Zinc on Maize and Cowpea Grown on Alfisols in Sourthern Nigeria. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria, 2020.

MLA-referens (9:e uppl.)

OSINAME, O.A. Effects of Phosphorus and Zinc on Maize and Cowpea Grown on Alfisols in Sourthern Nigeria. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria, 2020.

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