Duffy, S. (1987). Geological mapping. Technical Publications Trust.
Chicagoスタイル(17版)引用形式Duffy, S. Geological Mapping. Perth, W.A.: Technical Publications Trust, 1987.
MLA(9版)引用形式Duffy, S. Geological Mapping. Technical Publications Trust, 1987.
警告: この引用は必ずしも正確ではありません.