Style de citation APA (7e éd.)

Duncan, E. R. (2012). A Role for the University of Ife in Increasing Agricultural Production. Obafemi Awolowo University Press.

Style de citation Chicago (17e éd.)

Duncan, E. R. A Role for the University of Ife in Increasing Agricultural Production. Obafemi Awolowo University Press, 2012.

Style de citation MLA (9e éd.)

Duncan, E. R. A Role for the University of Ife in Increasing Agricultural Production. Obafemi Awolowo University Press, 2012.