“Public Documents Masterfile saves me about 100 hours a year just in finding SuDoc numbers.”
–-Kathy Edwards, Nevada State Library and Archives.
“Public Documents Masterfile is a unique resource for government information librarians. Moreover, it is designed by people who know the idiosyncracies of historical finding tools and how to bring them together via a seamless interface”
–James Gillespie, Johns Hopkins University
You can read a recent review of Public Documents Masterfile that was published in Documents to the People here.