APA (7th ed.) Citation

Roberts, W. M., & Gatke, R. M. (1920). The letters of the Rev. William M. Roberts, third superintendent of the Oregon Missions. Ivy Press.

Chicago Style (17th ed.) Citation

Roberts, William M., and Robert Moulton Gatke. The Letters of the Rev. William M. Roberts, Third Superintendent of the Oregon Missions. [Portland, Or.: Ivy Press, 1920.

MLA (8th ed.) Citation

Roberts, William M., and Robert Moulton Gatke. The Letters of the Rev. William M. Roberts, Third Superintendent of the Oregon Missions. Ivy Press, 1920.

Warning: These citations may not always be 100% accurate.