(1971). Vol. 69, № 32; OiL and Gas journal. 1971.
Chicagoスタイル(17版)引用形式Vol. 69, № 32; OiL and Gas Journal. 1971, 1971.
MLA(9版)引用形式Vol. 69, № 32; OiL and Gas Journal. 1971, 1971.
警告: この引用は必ずしも正確ではありません.
(1971). Vol. 69, № 32; OiL and Gas journal. 1971.
Chicagoスタイル(17版)引用形式Vol. 69, № 32; OiL and Gas Journal. 1971, 1971.
MLA(9版)引用形式Vol. 69, № 32; OiL and Gas Journal. 1971, 1971.