Cita APA (7a ed.)

Okolo, B. A. (1987). Topic shading in an unplanned Igbo discourse. LibraryPress@UF.

Cita Chicago Style (17a ed.)

Okolo, Bertram A. Topic Shading in an Unplanned Igbo Discourse. LibraryPress@UF, 1987.

Cita MLA (8a ed.)

Okolo, Bertram A. Topic Shading in an Unplanned Igbo Discourse. LibraryPress@UF, 1987.