Janzen, J. M. (1966). Collection of booklets and pamphlets obtained in 1965-1966 in the Lower Congo: An inventory of the C.A.M.P. microfilm, listing items in the order of filming.

Janzen, John M. Collection of Booklets and Pamphlets Obtained in 1965-1966 in the Lower Congo: An Inventory of the C.A.M.P. Microfilm, Listing Items in the Order of Filming. [n.p.], 1966.

Janzen, John M. Collection of Booklets and Pamphlets Obtained in 1965-1966 in the Lower Congo: An Inventory of the C.A.M.P. Microfilm, Listing Items in the Order of Filming. 1966.