APA način citiranja

Afolayan, A. J., & Ayandele, K. S. (1990). A quantitative study of the structure of an abandoned cropland in Nigeria.

Čikaški stil citiranja

Afolayan, A J., i K S. Ayandele. A Quantitative Study of the Structure of an Abandoned Cropland in Nigeria. 1990.

MLA način citiranja

Afolayan, A J., i K S. Ayandele. A Quantitative Study of the Structure of an Abandoned Cropland in Nigeria. 1990.