Παραπομπή σε μορφή APA (7η εκδ.)

ebrary, Inc, Knörr, J., & Trajano Filho, W. (2010). The powerful presence of the past: Integration and conflict along the upper Guinea Coast. Brill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

ebrary, Inc, Jacqueline Knörr, και Wilson Trajano Filho. The Powerful Presence of the Past: Integration and Conflict Along the Upper Guinea Coast. Leiden ; Boston: Brill, 2010.

Παραπομπή σε μορφή MLA (9th εκδ.)

ebrary, Inc, et al. The Powerful Presence of the Past: Integration and Conflict Along the Upper Guinea Coast. Brill, 2010.