Παραπομπή APA

Koninklijke Nederlandsche Petroleum Maatschappij. (1983). The Petroleum handbook (6th ed.). Elsevier ; Distributors for the United States and Canada, Elsevier Science Pub. Co..

Παραπομπή Chicago Style

Koninklijke Nederlandsche Petroleum Maatschappij. The Petroleum Handbook. 6th ed. Amsterdam ; New York : New York, N.Y.: Elsevier ; Distributors for the United States and Canada, Elsevier Science Pub. Co., 1983.

Παραπομπή MLA

Koninklijke Nederlandsche Petroleum Maatschappij. The Petroleum Handbook. 6th ed. Elsevier ; Distributors for the United States and Canada, Elsevier Science Pub. Co., 1983.