APA (7th ed.) Citation

Sohm, R., Sinclair, M., & Gwatkin, H. M. (2014). Outlines of church history. BiblioLife.

Chicago Style (17th ed.) Citation

Sohm, Rudolf, May Sinclair, and Henry Melvill Gwatkin. Outlines of Church History. Charleston, South Carolina: BiblioLife, 2014.

MLA (9th ed.) Citation

Sohm, Rudolf, et al. Outlines of Church History. BiblioLife, 2014.