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Dyfyniad Arddull ChicagoHanson, Jeff. Schaum's Statics Supplementary Problem 5.37: Unknown Force. New York, N.Y.: McGraw-Hill Education LLC., 2021.
Dyfyniad MLAHanson, Jeff. Schaum's Statics Supplementary Problem 5.37: Unknown Force. New York, N.Y.: McGraw-Hill Education LLC., 2021.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.