Citazione Stile APA (7a Edizione)

Impavido, G., & Pazarbasioglu, C. (2008). Efficiency and performance of Bulgarian private pensions. International Monetary Fund.

Citazione stile Chigago Style (17a edizione)

Impavido, Gregorio, e Ceyla Pazarbasioglu. Efficiency and Performance of Bulgarian Private Pensions. [Washington, District of Columbia]: International Monetary Fund, 2008.

Citatione MLA (9a ed.)

Impavido, Gregorio, e Ceyla Pazarbasioglu. Efficiency and Performance of Bulgarian Private Pensions. International Monetary Fund, 2008.