APA-ийн эшлэл(7 дахь хэвлэлт)

Olarewaju, V. I. (2018). Rocks: Their Beauty, Language And Roles As Resources of Economic Development. Obafemi Awolowo University Press Limited.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Olarewaju, Victor I.O. Rocks: Their Beauty, Language And Roles As Resources of Economic Development. Obafemi Awolowo University Press Limited, 2018.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Olarewaju, Victor I.O. Rocks: Their Beauty, Language And Roles As Resources of Economic Development. Obafemi Awolowo University Press Limited, 2018.