Citazione Stile APA (7a Edizione)

GUPTA A P. (1987). BUSINESS STATISTICS (6.). SULTAN CHAND AND SONS.

Citazione stile Chigago Style (17a edizione)

GUPTA A P. BUSINESS STATISTICS. 6. NEW DELHI: SULTAN CHAND AND SONS, 1987.

Citatione MLA (9a ed.)

GUPTA A P. BUSINESS STATISTICS. 6. SULTAN CHAND AND SONS, 1987.