"R. Saunders" is a pseudonym., Advertised in the Pennsylvania gazette, Philadelphia, August 1, 1765., At foot of title page: Signs, planets, and aspects., and ONLINE VERSION AVAILABLE TO AUTHORIZED PSU USERS.
Digital image available in the Readex/Newsbank Digital Evans series.
Microopaque. [New York : Readex Microprint, 1955-1983. 23 x 15 cm. (Early American imprints. First series ; no. 10160).
Drake, M. Almanacs, 9889, Evans, C. American bibliography, 10160, and Miller, C.W. Franklin, 851