Citazione Stile APA (7a Edizione)

Gupta, P., & Mahler, W. (1994). Taxation of Petroleum Products: Theory and Empirical Evidence. International Monetary Fund.

Citazione stile Chigago Style (17a edizione)

Gupta, Poonam, e Walter Mahler. Taxation of Petroleum Products: Theory and Empirical Evidence. Washington, D.C.: International Monetary Fund, 1994.

Citatione MLA (8a ed.)

Gupta, Poonam, e Walter Mahler. Taxation of Petroleum Products: Theory and Empirical Evidence. International Monetary Fund, 1994.