Weber, B. (1973). Construction materials in the Morobe District. Dept. of Lands and Surveys.
Chicagoスタイル(17版)引用形式Weber, B. Construction Materials in the Morobe District. [Port Moresby]: Dept. of Lands and Surveys, 1973.
MLA(9版)引用形式Weber, B. Construction Materials in the Morobe District. Dept. of Lands and Surveys, 1973.
警告: この引用は必ずしも正確ではありません.