The merchant's assistant, and clerk's instructor: containing the practical part of business demonstrated in a familiar, regular, and easy method, ... By J. Castro, ...
Castro, J.,writing master.
London : printed for the author, and sold by B. Milles; and by the booksellers of London and Westminster,
1742.
ESTC
Also reproduced on microfilm. Woodbridge, CT: Research Publications, Inc., 1985. The Eighteenth Century ; reel 1328, no. 06.