Dube, D. R. (1987). Agricultural geography: Issues and applications. Gain.
Chicagoスタイル(17版)引用形式Dube, Dr. R.S. Agricultural Geography: Issues and Applications. Delhi: Gain, 1987.
MLA(9版)引用形式Dube, Dr. R.S. Agricultural Geography: Issues and Applications. Gain, 1987.
警告: この引用は必ずしも正確ではありません.