Allen, Y. (1960). A seminary survey: A listing and review of the activities of the theological schools and major seminaries located in Africa, Asia, and Latin America which are training men to serve as ordained ministers and priests in the Protestant, Roman Catholic, and Eastern churches. Harper.

Allen, Yorke. A Seminary Survey: A Listing and Review of the Activities of the Theological Schools and Major Seminaries Located in Africa, Asia, and Latin America Which Are Training Men to Serve as Ordained Ministers and Priests in the Protestant, Roman Catholic, and Eastern Churches. New York: Harper, 1960.

Allen, Yorke. A Seminary Survey: A Listing and Review of the Activities of the Theological Schools and Major Seminaries Located in Africa, Asia, and Latin America Which Are Training Men to Serve as Ordained Ministers and Priests in the Protestant, Roman Catholic, and Eastern Churches. Harper, 1960.