APA

Voskuil W., . (1944). Oil after the war a review. New York-US: Geografical record.

Chicago

Voskuil Walter, . 1944. Oil after the war a review. New York-US: Geografical record.

Harvard

Voskuil W., . (1944). Oil after the war a review. New York-US: Geografical record.

MLA

Voskuil Walter, . Oil after the war a review. New York-US: Geografical record. 1944.