Cita APA (7a ed.)

Horton, D. (1964). Vatican Diary 1962: A protestant observes the first session of Vatican Council II. Boston.

Cita Chicago Style (17a ed.)

Horton, Douglas. Vatican Diary 1962: A Protestant Observes the First Session of Vatican Council II. Filadelfia: Boston, 1964.

Cita MLA (9a ed.)

Horton, Douglas. Vatican Diary 1962: A Protestant Observes the First Session of Vatican Council II. Boston, 1964.