Government of India. (1949). Railway map of India. the director of brigadier surveyor general of India.
Citazione stile Chigago Style (17a edizione)Government of India. Railway Map of India. India: the director of brigadier surveyor general of India, 1949.
Citatione MLA (9a ed.)Government of India. Railway Map of India. the director of brigadier surveyor general of India, 1949.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.