APA
Oil and Natural Gas (Commission of), . (1983). Annual Report, 1982-83. : .
Chicago
Oil and Natural Gas (Commission of), . 1983. Annual Report, 1982-83. : .
Harvard
Oil and Natural Gas (Commission of), . (1983). Annual Report, 1982-83. : .
MLA
Oil and Natural Gas (Commission of), . Annual Report, 1982-83. : . 1983.