APA (7e ed.) Bronvermelding

Não informado. (1916). Oil Weekly. Gulf Publishing.

Chicago (17e ed.) Bronvermelding

Não informado. Oil Weekly. Houston, Tex: Gulf Publishing, 1916.

MLA (8e ed.) Bronvermelding

Não informado. Oil Weekly. Gulf Publishing, 1916.

Let op: Deze citaties zijn niet altijd 100% accuraat.