The Firm
MLA
The Firm. Economics U$a: 21st Century Edition. 21st Century Edition [Place of publication not identified]: Annenberg Learner (Firm), 2012
APA, 7th edition
(2012). The Firm. Economics U$A: 21st Century Edition. 21st Century Edition [Place of publication not identified]: Annenberg Learner (Firm)
Chicago, 17th edition
The Firm. Economics U$A: 21st Century Edition. 21st Century Edition [Place of publication not identified]: Annenberg Learner (Firm), 2012