APA (7th ed.) Zitazioa

Cooke, B. (1984). Contract planning and contractual procedures (2nd.ed.). Macmillan.

Chicago Style (17th ed.) Zitazioa

Cooke, B. Contract Planning and Contractual Procedures. 2nd.ed. Basingstoke, Hampshire [England]: Macmillan, 1984.

MLA (9th ed.) Zitazioa

Cooke, B. Contract Planning and Contractual Procedures. 2nd.ed. Macmillan, 1984.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.