Shepard, T., & McGiffert, M. (1994). God's plot: Puritan spirituality in Thomas Shepard's Cambridge (Rev. and expanded ed.). University of Massachusetts Press.

Shepard, Thomas, and Michael McGiffert. God's Plot: Puritan Spirituality in Thomas Shepard's Cambridge. Rev. and expanded ed. Amherst: University of Massachusetts Press, 1994.

Shepard, Thomas, and Michael McGiffert. God's Plot: Puritan Spirituality in Thomas Shepard's Cambridge. Rev. and expanded ed. University of Massachusetts Press, 1994.