SINGH, J. A. D. (1984). AGRICULTURAL GEOGRAPHY. McGraw-Hill.
Chicagoスタイル(17版)引用形式SINGH, JASBIR AND DHILLON. AGRICULTURAL GEOGRAPHY. McGraw-Hill, 1984.
MLA(8版)引用形式SINGH, JASBIR AND DHILLON. AGRICULTURAL GEOGRAPHY. McGraw-Hill, 1984.
警告: この引用は必ずしも正確ではありません.