APA (7th ed.) Citation

Parker, G. Parker's, ephemeris for the year of our Lord 1721 (Thirty second impression.).

Chicago Style (17th ed.) Citation

Parker, George. Parker's, Ephemeris for the Year of Our Lord 1721. Thirty second impression.

MLA (9th ed.) Citation

Parker, George. Parker's, Ephemeris for the Year of Our Lord 1721. Thirty second impression.

Warning: These citations may not always be 100% accurate.