Beckwith, R. T. (2005). Introduction: The relationship of calendar, chronolgy and worship. Calendar, chronology, and worship, 1-4.
Citazione stile Chigago Style (17a edizione)Beckwith, Roger T. "Introduction: The Relationship of Calendar, Chronolgy and Worship." Calendar, Chronology, and Worship 2005: 1-4.
Citatione MLA (8a ed.)Beckwith, Roger T. "Introduction: The Relationship of Calendar, Chronolgy and Worship." Calendar, Chronology, and Worship, 2005, pp. 1-4.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.