Heck, R. C. H., & Herrmann, G. (1910). Notes on the graphics of machine forces. D. Van Nostrand.
Chicago Style (17th ed.) CitationHeck, Robert Culbertson Hays, and Gustav Herrmann. Notes on the Graphics of Machine Forces. New York: D. Van Nostrand, 1910.
MLA (9th ed.) CitationHeck, Robert Culbertson Hays, and Gustav Herrmann. Notes on the Graphics of Machine Forces. D. Van Nostrand, 1910.
Warning: These citations may not always be 100% accurate.