Toft. Louis & Kersey, A. T. J. j. a. (1949). Theory of machines ; a textbook covering the syllabuses of the B. Sc. (Eng.), A. M. Inst. C. E., and A. M. I. Mech. E. erxaminations in this subject (6th ed.).
Chicago Style (17th ed.) CitationToft. Louis and Alfred Thomas John joint auth Kersey. Theory of Machines ; a Textbook Covering the Syllabuses of the B. Sc. (Eng.), A. M. Inst. C. E., and A. M. I. Mech. E. Erxaminations in This Subject. 6th ed. London, Sir I. Pitman & sons, ltd, 1949.
MLA (9th ed.) CitationToft. Louis and Alfred Thomas John joint auth Kersey. Theory of Machines ; a Textbook Covering the Syllabuses of the B. Sc. (Eng.), A. M. Inst. C. E., and A. M. I. Mech. E. Erxaminations in This Subject. 6th ed. 1949.
Warning: These citations may not always be 100% accurate.