APA ציטוט

Barrall,Irene. (2009). Intelligent business. England: Longman.

Trích dẫn kiểu Chicago

Barrall,Irene. Intelligent Business. England: Longman, 2009.

ציטוט MLA

Barrall,Irene. Intelligent Business. England: Longman, 2009.