Beer, F. P., & Johnston, R. E. (1972). Vector mechanics for engineers (Ed.2.). Mc Graw - Hill.
Dyfyniad Arddull ChicagoBeer, Ferdinand P., and Russell E. Johnston. Vector Mechanics for Engineers. Ed.2. New Delhi: Mc Graw - Hill, 1972.
Dyfyniad MLABeer, Ferdinand P., and Russell E. Johnston. Vector Mechanics for Engineers. Ed.2. Mc Graw - Hill, 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.