Citazione Stile APA (7a Edizione)

Papua and New Guinea & Papua and New Guinea. (1968). Tred stoa. Dept. of Information and Extension Services for Division of Business Training and Management, Dept. of Trade and Industry.

Citazione stile Chigago Style (17a edizione)

Papua and New Guinea e Papua and New Guinea. Tred Stoa. Port Moresby: Dept. of Information and Extension Services for Division of Business Training and Management, Dept. of Trade and Industry, 1968.

Citatione MLA (9a ed.)

Papua and New Guinea e Papua and New Guinea. Tred Stoa. Dept. of Information and Extension Services for Division of Business Training and Management, Dept. of Trade and Industry, 1968.