Beer, F. P., Eisenberg, E. R., Johnson, E. R. J., & Mazurek, D. Vector mechanics for engineers: Statics / by Ferdinand P. Beer...[et.al.]. (9th ed. [in SI Units].). New York : McGraw Hill Higher Education, c2007.

Beer, Ferdinand P., Elliot R. Eisenberg, E. Russell Jr Johnson, and David Mazurek. Vector Mechanics for Engineers: Statics / By Ferdinand P. Beer...[et.al.]. 9th ed. [in SI Units]. New York : McGraw Hill Higher Education, c2007.

Beer, Ferdinand P., Elliot R. Eisenberg, E. Russell Jr Johnson, and David Mazurek. Vector Mechanics for Engineers: Statics / By Ferdinand P. Beer...[et.al.]. 9th ed. [in SI Units]. New York : McGraw Hill Higher Education, c2007.