Jahn, J., Schild, U., & Nordmann, A. (1972). Who's who in African literature: Biographies, works, commentaries / Janheinz Jahn; Ulla Schild; Almut Nordmann. Publ. for the German Africa Society. [In collaboration with Inter Nationes]. Erdmann.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিJahn, Janheinz, Ulla Schild, এবং Almut Nordmann. Who's Who in African Literature: Biographies, Works, Commentaries / Janheinz Jahn; Ulla Schild; Almut Nordmann. Publ. for the German Africa Society. [In Collaboration with Inter Nationes]. Tübingen ; Basel: Erdmann, 1972.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিJahn, Janheinz, et al. Who's Who in African Literature: Biographies, Works, Commentaries / Janheinz Jahn; Ulla Schild; Almut Nordmann. Publ. for the German Africa Society. [In Collaboration with Inter Nationes]. Erdmann, 1972.