Johnston, J. E. R., & Beer Ferdinnand P. (1987). Mechanics for Engineers: Dynamics. American: McGraw -Hill.
Trích dẫn kiểu ChicagoJohnston, Jr E. Russell, và Beer Ferdinnand P. Mechanics for Engineers: Dynamics. American: McGraw -Hill, 1987.
Deismireacht MLAJohnston, Jr E. Russell, và Beer Ferdinnand P. Mechanics for Engineers: Dynamics. American: McGraw -Hill, 1987.
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