APA-Zitierstil (7. Ausg.)

Nwana, M. T., & Amawa, S. G. (2005). Elements of physical geography for junior secondary school: (form one) (2. ed. 2004, rev. ed. 2005.). NAB Ventures.

Chicago-Zitierstil (17. Ausg.)

Nwana, Martin T., und Sani G. Amawa. Elements of Physical Geography for Junior Secondary School: (form One). 2. ed. 2004, rev. ed. 2005. Bamenda: NAB Ventures, 2005.

MLA-Zitierstil (9. Ausg.)

Nwana, Martin T., und Sani G. Amawa. Elements of Physical Geography for Junior Secondary School: (form One). 2. ed. 2004, rev. ed. 2005. NAB Ventures, 2005.