APA-referens (7:e uppl.)

Serrano Gm̤ez Hugo. Law project 133 , [special rules for the exploration, exploitation, treatment, refining and transportation of heavy oil in Colombia].

Chicago-referens (17:e uppl.)

Serrano Gm̤ez Hugo. Law Project 133 , [special Rules for the Exploration, Exploitation, Treatment, Refining and Transportation of Heavy Oil in Colombia].

MLA-referens (9:e uppl.)

Serrano Gm̤ez Hugo. Law Project 133 , [special Rules for the Exploration, Exploitation, Treatment, Refining and Transportation of Heavy Oil in Colombia].

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.