Higdon, Archie Engineering mechanics, - 3rd ed. - New Jersey : Prentice-Hall, 1968. - xi, 395 p. : ill. ; 23 cm. Includes index. Subjects--Topical Terms: Forces and EquilibriumStructural AnalysisMechanical Engineering PrinciplesRigid Body Mechanics Dewey Class. No.: 620.1 / HIG