Chissano Joaquim Alberto. Petroleum law No. 3/2001 of 21 February.
Chicago Style aipamenaChissano Joaquim Alberto. Petroleum Law No. 3/2001 of 21 February.
MLA aipamenaChissano Joaquim Alberto. Petroleum Law No. 3/2001 of 21 February.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.