Plants, H. L. (1966). Programmed topics in statics and strength of materials. Mc Graw - Hill.
Dyfyniad Arddull ChicagoPlants, Helen Lester. Programmed Topics in Statics and Strength of Materials. New York: Mc Graw - Hill, 1966.
Dyfyniad MLAPlants, Helen Lester. Programmed Topics in Statics and Strength of Materials. Mc Graw - Hill, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.