Penn, W. S. (1966). PVC technology / by W.S. Penn (2nd ed.). Maclaren.
Chicago Style (17th ed.) CitationPenn, W. S. PVC Technology / by W.S. Penn. 2nd ed. Maclaren, 1966.
MLA (9th ed.) CitationPenn, W. S. PVC Technology / by W.S. Penn. 2nd ed. Maclaren, 1966.
Warning: These citations may not always be 100% accurate.