APA-viite (7. p.)

Oke, O. (2019). Chemistry in the economic development of Nigeria. University of Ife Press.

Chicago-viite (17. p.)

Oke, O.L. Chemistry in the Economic Development of Nigeria. University of Ife Press, 2019.

MLA-viite (9. p.)

Oke, O.L. Chemistry in the Economic Development of Nigeria. University of Ife Press, 2019.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.