BEER, F. P., & JOHNSTON, E. R. (1977). Vector mechanics for engineers: Statics and dynamics (Ed.3.). McGraw-Hill Bo. Co.

BEER, Ferdinand P., and E. Russell JOHNSTON. Vector Mechanics for Engineers: Statics and Dynamics. Ed.3. New York: McGraw-Hill Bo. Co, 1977.

BEER, Ferdinand P., and E. Russell JOHNSTON. Vector Mechanics for Engineers: Statics and Dynamics. Ed.3. McGraw-Hill Bo. Co, 1977.