Sheffield, R. (1980). Floating drilling: :equipment and its use. Gulf publishing.
シカゴスタイル引用形Sheffield, Riley. Floating Drilling: :equipment and Its Use. London: Gulf publishing, 1980.
MLA引用形式Sheffield, Riley. Floating Drilling: :equipment and Its Use. Gulf publishing, 1980.
警告: この引用は必ずしも正確ではありません.