Hartshorne, H., Stearns, H. R., & Uphaus, W. E. (1933). Standards and trends in religious education. Pub. for the Institute of social and religious research by the Yale university press, H. Milford, Oxford university press.

Hartshorne, Hugh, Helen Rachel Stearns, and Willard Edwin Uphaus. Standards and Trends in Religious Education. New Haven, London: Pub. for the Institute of social and religious research by the Yale university press, H. Milford, Oxford university press, 1933.

Hartshorne, Hugh, et al. Standards and Trends in Religious Education. Pub. for the Institute of social and religious research by the Yale university press, H. Milford, Oxford university press, 1933.