APA ציטוט

Ecuador, B. C. d. (2011). Cifras del sector petrolero ecuatoriano n°54 – 2011.

Chicago Style (17th ed.) Citation

Ecuador, Banco Central del. Cifras Del Sector Petrolero Ecuatoriano N°54 – 2011. 2011.

ציטוט MLA

Ecuador, Banco Central del. Cifras Del Sector Petrolero Ecuatoriano N°54 – 2011. 2011.