APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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