Hopkins , W. C., & Williams, D. L. (1968). Converting factors for Southern pine products. State University.
Chicagoスタイル(17版)引用形式Hopkins , William C., , David L. Williams. Converting Factors for Southern Pine Products. Louisiana: State University, 1968.
MLA(9版)引用形式Hopkins , William C., , David L. Williams. Converting Factors for Southern Pine Products. State University, 1968.
警告: この引用は必ずしも正確ではありません.