The Gregorian and Julian calendars, or, the new and old stiles, arithmetically explained. Wherein is taught how to find the leap-years, golden numbers, epacts, dominical letters, Easter Day, the moon's age, ... By Aaron Hawkins.
Hawkins, Aaron.
London : printed for the author; and sold by M. Cooper; and may be had at all the book and pamphlet-sellers in His Majesty's dominions,
1751.
ESTC