APA
India. Survey of India, . (1961). Map of Bihar, West Bangal. [S.l]: Brigadier C G Lewis.
Chicago
India. Survey of India, . 1961. Map of Bihar, West Bangal. [S.l]: Brigadier C G Lewis.
Harvard
India. Survey of India, . (1961). Map of Bihar, West Bangal. [S.l]: Brigadier C G Lewis.
MLA
India. Survey of India, . Map of Bihar, West Bangal. [S.l]: Brigadier C G Lewis. 1961.