Clasificación de la Biblioteca del CongresoPK1975.B37
⮑ PK1-9601. Indo-Iranian philology and literature
⮑ PK101-2899. Indo-Aryan languages
⮑ PK1501-2899. Modern Indo-Aryan languages
⮑ PK1550-2899. Particular languages and dialects
⮑ PK1931-2212. Hindi, Urdu, Hindustani languages and
⮑ PK1971-1979.5. Urdu language