Wells, E. (1736). The Young Gentleman's Astronomy, Chronology, and Dialling: Containing such Elements of the said Arts or Sciences, as are most useful an easy to be known (The Fourth Edition Revised and Corrected, with Additions.). London: Printed for James, John, and Paul Knapton, at the Crown in Ludgate-Street.

Wells, Edward. The Young Gentleman's Astronomy, Chronology, and Dialling: Containing Such Elements of the Said Arts or Sciences, As Are Most Useful an Easy to Be Known. The Fourth Edition Revised and Corrected, with Additions. London: Printed for James, John, and Paul Knapton, at the Crown in Ludgate-Street, 1736.

Wells, Edward. The Young Gentleman's Astronomy, Chronology, and Dialling: Containing Such Elements of the Said Arts or Sciences, As Are Most Useful an Easy to Be Known. The Fourth Edition Revised and Corrected, with Additions. London: Printed for James, John, and Paul Knapton, at the Crown in Ludgate-Street, 1736.