Cita APA (7a ed.)

Engel, U. (2021). Yearbook on the African Union: Volume 1. Brill.

Cita Chicago Style (17a ed.)

Engel, Ulf. Yearbook on the African Union: Volume 1. Boston, Massachusetts: Brill, 2021.

Cita MLA (9a ed.)

Engel, Ulf. Yearbook on the African Union: Volume 1. Brill, 2021.