Janzen, J. M. (1959). Collection of booklets and pamphlets obtained in 1965-1966 in the Lower Congo: Items are primarily official publications of several religious organizations.

Janzen, John M. Collection of Booklets and Pamphlets Obtained in 1965-1966 in the Lower Congo: Items Are Primarily Official Publications of Several Religious Organizations. [n.p.], 1959.

Janzen, John M. Collection of Booklets and Pamphlets Obtained in 1965-1966 in the Lower Congo: Items Are Primarily Official Publications of Several Religious Organizations. 1959.