Black, G. D. (1918). The Sunday School as a Church Problem. The biblical world, 51(3), 150-152. doi:10.1086/475974
Chicago Style (17th ed.) CitationBlack, George D. "The Sunday School as a Church Problem." The Biblical World 51, no. 3 (1918): 150-152, https://doi.org/10.1086/475974.
MLA (9th ed.) CitationBlack, George D. "The Sunday School as a Church Problem." The Biblical World, vol. 51, no. 3, 1918, pp. 150-152, https://doi.org/10.1086/475974.
Warning: These citations may not always be 100% accurate.