Source
Elbridge (1993)
Betsy Palmer Elbridge (1993), “Sewing Variations Outline”, in Standards, Boston (MA), Guild of book workers, https://www.guildofbookworkers.org/sites/default/files/standards/1993-E… (accessed February 2015).
Betsy Palmer Elbridge (1993), “Sewing Variations Outline”, in Standards, Boston (MA), Guild of book workers, https://www.guildofbookworkers.org/sites/default/files/standards/1993-E… (accessed February 2015).