Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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