The guardians or, Society for the Protection of Trade against Swindlers and Sharpers established March 25, 1776 (s.n, 1779)
"List of the members, June 1st, 1779": p. [25]-48. - Goldsmiths'-Kress no. 11853.12. - OCLC, 21250234. - Reproduction of original from Kress Library of Business and Economics, Harvard University