एपीए उद्धरण

Central excise tariff (working schedule). 1969. Statistics & Intelligence Branch Central Excise.

शिकागो स्टाइल उद्धरण

Central Excise Tariff (working Schedule). 1969. New Delhi: Statistics & Intelligence Branch Central Excise.

एमएलए उद्धरण

Central Excise Tariff (working Schedule). 1969. Statistics & Intelligence Branch Central Excise.