Cita APA (7a ed.)

Iwena, O. A. (2015). Essential geography for senior secondary schools (Sixth edition.). Tonad Publishers Limited, Essentials - the secret of distinction.

Cita Chicago Style (17a ed.)

Iwena, O. A. Essential Geography for Senior Secondary Schools. Sixth edition. Ikeja, Lagos: Tonad Publishers Limited, Essentials - the secret of distinction, 2015.

Cita MLA (9a ed.)

Iwena, O. A. Essential Geography for Senior Secondary Schools. Sixth edition. Tonad Publishers Limited, Essentials - the secret of distinction, 2015.