APA (7th ed.) Zitazioa

Kay, M., & Goodfellow, R. (1974). Marketing petroleum products. Macmillan.

Chicago Style (17th ed.) Zitazioa

Kay, Martin, eta Robin Goodfellow. Marketing Petroleum Products. London: Macmillan, 1974.

MLA (9th ed.) Zitazioa

Kay, Martin, eta Robin Goodfellow. Marketing Petroleum Products. Macmillan, 1974.