Citazione Stile APA (7a Edizione)

Glen, A., & WIlliams, M. (1982). North Sea oil and gas (1. publ.). Heinemann.

Citazione stile Chigago Style (17a edizione)

Glen, Ann, e Michael WIlliams. North Sea Oil and Gas. 1. publ. London [u.a.]: Heinemann, 1982.

Citatione MLA (9a ed.)

Glen, Ann, e Michael WIlliams. North Sea Oil and Gas. 1. publ. Heinemann, 1982.