O it is hard to work for God

MLA style (see MLA Style Manual and Guide to Scholarly Publishing, 3rd Ed.)

. "O it is hard to work for God." The Canterbury Dictionary of Hymnology. Canterbury Press. Web. 12 Jul. 2025.<http://www.hymnology.co.uk/o/o-it-is-hard-to-work-for-god>.

Chicago style (see The Chicago Manual of Style, 16th Ed.)

. "O it is hard to work for God." The Canterbury Dictionary of Hymnology. Canterbury Press, accessed July 12, 2025, http://www.hymnology.co.uk/o/o-it-is-hard-to-work-for-god.