Citazione Stile APA (7a Edizione)

Chopra, B. (1989). Business environment: 1989-90 an outline (3rd.). T.R.F.

Citazione stile Chigago Style (17a edizione)

Chopra, B. Business Environment: 1989-90 an Outline. 3rd. Pune: T.R.F, 1989.

Citatione MLA (9a ed.)

Chopra, B. Business Environment: 1989-90 an Outline. 3rd. T.R.F, 1989.