APA
Harry Walton, . (1968). How and why of Mechanical movements. New York: POPULAR SCIENCE PUBLISHING CO. E.P.DUTTON & CO. INC.
Chicago
Harry Walton, . 1968. How and why of Mechanical movements. New York: POPULAR SCIENCE PUBLISHING CO. E.P.DUTTON & CO. INC.
Harvard
Harry Walton, . (1968). How and why of Mechanical movements. New York: POPULAR SCIENCE PUBLISHING CO. E.P.DUTTON & CO. INC.
MLA
Harry Walton, . How and why of Mechanical movements. New York: POPULAR SCIENCE PUBLISHING CO. E.P.DUTTON & CO. INC. 1968.