APA (7. basım) Alıntı

Ero, I. I., & Sanford, W. W. (2014). Guinea Savanna Structure and Land-use in Northwestern Nigeria. Obafemi Awolowo University.

Chicago Style (17. basım) Atıf

Ero, Isaac Izogie, ve W. W. Sanford. Guinea Savanna Structure and Land-use in Northwestern Nigeria. Obafemi Awolowo University, 2014.

MLA (9th ed.) Atıf

Ero, Isaac Izogie, ve W. W. Sanford. Guinea Savanna Structure and Land-use in Northwestern Nigeria. Obafemi Awolowo University, 2014.