APA (7th ed.) Citation

Braukämper, U., Fricke, W., & Jungraithmayr, H. (1991). German research in North-Eastern Nigeria. Steiner.

Chicago Style (17th ed.) Citation

Braukämper, Ulrich, Werner Fricke, and Herrmann Jungraithmayr. German Research in North-Eastern Nigeria. Stuttgart: Steiner, 1991.

MLA (8th ed.) Citation

Braukämper, Ulrich, et al. German Research in North-Eastern Nigeria. Steiner, 1991.