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Lua i Stíl Chicago (17ú heag.)Bielenstein, Dieter, Heinz Kuhn, agus Lothar Lahn. Perspectives in Afro-German Relations, International Conference Bonn, October 8-10, 1975. Bonn: Friedrich-Ebert-Stiftung, 1975.
Lua MLA (8ú heag.)Bielenstein, Dieter, et al. Perspectives in Afro-German Relations, International Conference Bonn, October 8-10, 1975. Bonn: Friedrich-Ebert-Stiftung, 1975.
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