(1997). Main types of geological maps purpose, use and preparation. Oxford.
Chicagoスタイル(17版)引用形式Main Types of Geological Maps Purpose, Use and Preparation. New Delhi: Oxford, 1997.
MLA(9版)引用形式Main Types of Geological Maps Purpose, Use and Preparation. Oxford, 1997.
警告: この引用は必ずしも正確ではありません.