Beer, F. P., & Johnston, E. R. (1977). Vector mechanics for engineers (2nd ed., SI Metric.). Singapore: McGraw-Hill.
Παραπομπή Chicago StyleBeer, Ferdinand P., and E. Russell Johnston. Vector Mechanics for Engineers. 2nd ed., SI Metric. Singapore: McGraw-Hill, 1977.
Παραπομπή MLABeer, Ferdinand P., and E. Russell Johnston. Vector Mechanics for Engineers. 2nd ed., SI Metric. Singapore: McGraw-Hill, 1977.
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