Singh, L. (1981). New perspectives in geography. Thinker's Library.
シカゴスタイル引用形Singh, L.R. New Perspectives in Geography. Allahabad: Thinker's Library, 1981.
MLA引用形式Singh, L.R. New Perspectives in Geography. Thinker's Library, 1981.
警告: この引用は必ずしも正確ではありません.