Carlson, P. A., Forkner, H. L., & Boynton, L. D. (1962). Working papers and study guides: 20th century bookkeeping & accounting, 22nd ed. South-western Publishing Co..

Carlson, Paul A., Hamden Landon Forkner, and Lewis Delano Boynton. Working Papers and Study Guides: 20th Century Bookkeeping & Accounting, 22nd Ed. [Cincinnati: South-western Publishing Co., 1962.

Carlson, Paul A., et al. Working Papers and Study Guides: 20th Century Bookkeeping & Accounting, 22nd Ed. South-western Publishing Co., 1962.