Cita APA (7a ed.)

Nygren, A., & Watson, P. (1973). Essence of christianity: Two Essays. William B.Ferdmans Publishing Company Grand Rapids.

Cita Chicago Style (17a ed.)

Nygren, Anders, y Philip Watson. Essence of Christianity: Two Essays. Michigan: William B.Ferdmans Publishing Company Grand Rapids, 1973.

Cita MLA (9a ed.)

Nygren, Anders, y Philip Watson. Essence of Christianity: Two Essays. William B.Ferdmans Publishing Company Grand Rapids, 1973.