Cita APA (7a ed.)
Fourteen Hours: A Picture Story of the Pope's Historic First Visit to America. Dell.
Cita estilo Chicago (17a ed.)
Fourteen Hours: A Picture Story of the Pope's Historic First Visit to America. Nueva York, EUA: Dell.
Cita MLA (9a ed.)
Fourteen Hours: A Picture Story of the Pope's Historic First Visit to America. Dell.
警告：這些引文格式不一定是100％准確.