Knight, M. J., & Chapman, D. T. Village water-supply Survey, Madang District, Papua New Guinea. Dept. of Lands, Surveys and Mines.
Citazione stile Chigago Style (17a edizione)Knight, M. J., e D. T. Chapman. Village Water-supply Survey, Madang District, Papua New Guinea. [Port Moresby]: Dept. of Lands, Surveys and Mines.
Citatione MLA (9a ed.)Knight, M. J., e D. T. Chapman. Village Water-supply Survey, Madang District, Papua New Guinea. Dept. of Lands, Surveys and Mines.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.