The Faith and Practice of the Quakers by Rufus M. Jones
The Journal of George Fox
The Letters of Isaac Penington
Prayer and Worship by Douglas V. Steere
The Quaker Ministry by John William Graham
The Quaker Way of Life by William Wistar Comfort
The Rise and Progress of the People Called Quakers by William Penn
Silent Worship, the Way of Wonder by L. Violet Hodgkin
A Testament of Devotion by Thomas R. Kelly
Testimonies and Practice of the Society of Friends by Jane P. Rushmore