Pacheco, E. S. An alternative formulation of the work energy principle. Philippine Engineering Journal.
Citación estilo ChicagoPacheco, Edgardo S. "An Alternative Formulation of the Work Energy Principle." Philippine Engineering Journal .
Cita MLAPacheco, Edgardo S. "An Alternative Formulation of the Work Energy Principle." Philippine Engineering Journal, .
Warning: These citations may not always be 100% accurate.