APA način citiranja (7. izdanje)

Papua New Guinea. Postal and Telecommunication Services. (1980). The first 25 years: P & T's silver jubilee of service to the nation Papua New Guinea 1980. Dept. of Public Utilities.

Čikaški stil citiranja (17. izdanje)

Papua New Guinea. Postal and Telecommunication Services. The First 25 Years: P & T's Silver Jubilee of Service to the Nation Papua New Guinea 1980. [Port Moresby]: Dept. of Public Utilities, 1980.

MLA način citiranja (8. izdanje)

Papua New Guinea. Postal and Telecommunication Services. The First 25 Years: P & T's Silver Jubilee of Service to the Nation Papua New Guinea 1980. Dept. of Public Utilities, 1980.