Cita APA (7th ed.)

(2005). Business environment & concepts (2006 ed. textbook.). Becker CPA Review.

Cita Chicago (17th ed.)

Business Environment & Concepts. 2006 ed. textbook. Oakbrook Terrace, Illinois: Becker CPA Review, 2005.

Cita MLA (9th ed.)

Business Environment & Concepts. 2006 ed. textbook. Becker CPA Review, 2005.