Clavis commercii
Subtitle: or, The key of commerce: shewing, the true method of keeping merchants books, after the Italian manner of debtor and creditor
By: By J. H. of London, merchant.
Edition: The 3d ed / corr. and amended by John Rayner.
Publisher: Printed for H. Tracy and J. Wyat
Published: 1718
Place of publication: London
Language: lat
Number of pages: 190
Subjects: Bookkeeping.
Other titles: The key of commerce.
Notes: "The calendar ... of the ledger," p. 1-20 at end numbered in duplicate.

"The epistle to the reader" signed: John Hawkins.