Gupta, P. (1989). Geography from ancient Indian coins and: Seals. Concept.
Citazione stile Chigago Style (17a edizione)Gupta, Parmanand. Geography from Ancient Indian Coins and: Seals. New Delhi: Concept, 1989.
Citatione MLA (9a ed.)Gupta, Parmanand. Geography from Ancient Indian Coins and: Seals. Concept, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.