Hayes, J. E. R. (1948). The nature of patentable invention: Its attributes and definition (2d ed.). Addison-Wesley Press.
Chicago Style (17th ed.) CitationHayes, John Edward Rollins. The Nature of Patentable Invention: Its Attributes and Definition. 2d ed. Cambridge, Mass.: Addison-Wesley Press, 1948.
MLA (9th ed.) CitationHayes, John Edward Rollins. The Nature of Patentable Invention: Its Attributes and Definition. 2d ed. Addison-Wesley Press, 1948.
Warning: These citations may not always be 100% accurate.