Sibthorp, R. W. (1843). The true path for the true churchman wandering in the mazes of Protestantism, exemplified in two letters in answer to the enquiry: Why have you become a Catholic? New York.
Lua i Stíl Chicago (17ú heag.)Sibthorp, Richard Waldo. The True Path for the True Churchman Wandering in the Mazes of Protestantism, Exemplified in Two Letters in Answer to the Enquiry: Why Have You Become a Catholic? New York, 1843.
Lua MLA (8ú heag.)Sibthorp, Richard Waldo. The True Path for the True Churchman Wandering in the Mazes of Protestantism, Exemplified in Two Letters in Answer to the Enquiry: Why Have You Become a Catholic? New York, 1843.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.