APA (7th ed.) Citation

Institute of Applied Social and Economic Research. (1972). Papua New Guinea post courier selective index. Institute of Applied Social and Economic Research (Papua New Guinea).

Chicago Style (17th ed.) Citation

Institute of Applied Social and Economic Research. Papua New Guinea Post Courier Selective Index. Port Moresby: Institute of Applied Social and Economic Research (Papua New Guinea), 1972.

MLA (9th ed.) Citation

Institute of Applied Social and Economic Research. Papua New Guinea Post Courier Selective Index. Institute of Applied Social and Economic Research (Papua New Guinea), 1972.