APA

Starm P., International Gas Union & International Gas Union. (2001). Developpements reels de l'industrie du gaz. Algerie: International Gas Union.

Chicago

Starm Péter, International Gas Union and International Gas Union. 2001. Developpements reels de l'industrie du gaz. Algerie: International Gas Union.

Harvard

Starm P., International Gas Union and International Gas Union. (2001). Developpements reels de l'industrie du gaz. Algerie: International Gas Union.

MLA

Starm Péter, International Gas Union and International Gas Union. Developpements reels de l'industrie du gaz. Algerie: International Gas Union. 2001.