Cita APA (7a ed.)

Sprug, J. W., & Kortendick, J. J. p. (1966). An index to G.K. Chesterton. The Catholic University of America Press.

Cita Chicago Style (17a ed.)

Sprug, Joseph W., y James J. pr Kortendick. An Index to G.K. Chesterton. Washington: The Catholic University of America Press, 1966.

Cita MLA (9a ed.)

Sprug, Joseph W., y James J. pr Kortendick. An Index to G.K. Chesterton. The Catholic University of America Press, 1966.