APA (7e ed.) Bronvermelding

OLU-OBI, A., HEDLIN , R. A., & CHO, C. M. (2020). FATE OF ADDED NITROGEN IN SOILS. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria.

Chicago (17e ed.) Bronvermelding

OLU-OBI, A., R. A. HEDLIN , en C. M. CHO. FATE OF ADDED NITROGEN IN SOILS. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria, 2020.

MLA (9e ed.) Bronvermelding

OLU-OBI, A., et al. FATE OF ADDED NITROGEN IN SOILS. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria, 2020.