APA (7th ed.) Citation

Allen, J., & Allen, J. (1965). Halia language course. Dept. of Information & Extension Services.

Chicago Style (17th ed.) Citation

Allen, Jerry, and Janice Allen. Halia Language Course. Port Moresby: Dept. of Information & Extension Services, 1965.

MLA (9th ed.) Citation

Allen, Jerry, and Janice Allen. Halia Language Course. Dept. of Information & Extension Services, 1965.

Warning: These citations may not always be 100% accurate.