Παραπομπή σε μορφή APA (7η εκδ.)

Statistics, D. o. D. a. S. (2019). Demographic Concepts and Characteristics. Obafemi Awolowo University.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Statistics, Department of Demography and Social. Demographic Concepts and Characteristics. Obafemi Awolowo University, 2019.

Παραπομπή σε μορφή MLA (9th εκδ.)

Statistics, Department of Demography and Social. Demographic Concepts and Characteristics. Obafemi Awolowo University, 2019.