Gouwens, P. R. (1967). Pattern material wear studies. [American Foundrymen's Society].
Chicago Style (17th ed.) CitationGouwens, Paul R. Pattern Material Wear Studies. [Des Plaines, Ill.]: [American Foundrymen's Society], 1967.
MLA (9th ed.) CitationGouwens, Paul R. Pattern Material Wear Studies. [American Foundrymen's Society], 1967.
Warning: These citations may not always be 100% accurate.