Sadhukhan, S. K. (1994). Economic geography: An appraisal of resources (Fourth edition.). S. Chand & Co.
Citazione stile Chigago Style (17a edizione)Sadhukhan, S K. Economic Geography: An Appraisal of Resources. Fourth edition. New Delhi: S. Chand & Co, 1994.
Citatione MLA (8a ed.)Sadhukhan, S K. Economic Geography: An Appraisal of Resources. Fourth edition. S. Chand & Co, 1994.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.