APA-viite (7. p.)
Sheff, A. L. (1966). Bookkeeping made easy: With a selection on Business Mathematics. Barnes & Noble.
Chicago-viite (17. p.)
Sheff, Alexander L. Bookkeeping Made Easy: With a Selection on Business Mathematics. New York: Barnes & Noble, 1966.
MLA-viite (9. p.)
Sheff, Alexander L. Bookkeeping Made Easy: With a Selection on Business Mathematics. Barnes & Noble, 1966.
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