Keiper, F. (1924). Pioneer inventions and pioneer patents: A lecture on patent law delivered to the senior engineering students of Purdue university ... (2d ed.). Pioneer publishing company.
Chicago Style (17th ed.) CitationKeiper, Frank. Pioneer Inventions and Pioneer Patents: A Lecture on Patent Law Delivered to the Senior Engineering Students of Purdue University ... 2d ed. Rochester, N. Y.: Pioneer publishing company, 1924.
MLA (9th ed.) CitationKeiper, Frank. Pioneer Inventions and Pioneer Patents: A Lecture on Patent Law Delivered to the Senior Engineering Students of Purdue University ... 2d ed. Pioneer publishing company, 1924.
Warning: These citations may not always be 100% accurate.