APA
Indian Petroleum Handbook 1967-68, Indian Petroleum Handbook 1967-68, . (1968). Indian petroleum handbook 1967-68. : .
Chicago
Indian Petroleum Handbook 1967-68, Indian Petroleum Handbook 1967-68, . 1968. Indian petroleum handbook 1967-68. : .
Harvard
Indian Petroleum Handbook 1967-68, Indian Petroleum Handbook 1967-68, . (1968). Indian petroleum handbook 1967-68. : .
MLA
Indian Petroleum Handbook 1967-68, Indian Petroleum Handbook 1967-68, . Indian petroleum handbook 1967-68. : . 1968.
