Hopkins , W. C., & Williams, D. L. (1968). Converting factors for Southern pine products. State University.
Chicago Style (17th ed.) CitationHopkins , William C., and David L. Williams. Converting Factors for Southern Pine Products. Louisiana: State University, 1968.
MLA引文Hopkins , William C., and David L. Williams. Converting Factors for Southern Pine Products. State University, 1968.
警告:這些引文格式不一定是100%准確.