APA-viite (7. p.)

HELMKAMP, IMDIEKE, & SMITH. (1986). Principles of accounting.-- ed.2. John Wiley and Sons.

Chicago-viite (17. p.)

HELMKAMP, IMDIEKE, ja SMITH. Principles of Accounting.-- Ed.2. New York: John Wiley and Sons, 1986.

MLA-viite (9. p.)

HELMKAMP, et al. Principles of Accounting.-- Ed.2. John Wiley and Sons, 1986.