Παραπομπή σε μορφή APA (7η εκδ.)

YUSUF, F. A., & OKANLAWON, E. A. (2019). Assessment of secondary school students’ knowledge and attitude towards drug abuse: Implications for counselling. Urray.

Παραπομπή σε μορφή Chicago (17η εκδ.)

YUSUF, FLORENCE ADEOTI, και EJIWALE AYOADE OKANLAWON. Assessment of Secondary School Students’ Knowledge and Attitude Towards Drug Abuse: Implications for Counselling. Urray, 2019.

Παραπομπή σε μορφή MLA (8th εκδ.)

YUSUF, FLORENCE ADEOTI, και EJIWALE AYOADE OKANLAWON. Assessment of Secondary School Students’ Knowledge and Attitude Towards Drug Abuse: Implications for Counselling. Urray, 2019.