Penington, I. (1667). Concerning the sum or substance of our religion, who are called Quakers, and the exercises and travels of our spirits therein. s.n.
Chicago Style (17th ed.) CitationPenington, Isaac. Concerning the Sum or Substance of Our Religion, Who Are Called Quakers, and the Exercises and Travels of Our Spirits Therein. S.l: s.n, 1667.
MLA (9th ed.) CitationPenington, Isaac. Concerning the Sum or Substance of Our Religion, Who Are Called Quakers, and the Exercises and Travels of Our Spirits Therein. s.n, 1667.
Warning: These citations may not always be 100% accurate.