Heins, C. P., & Derucher, N. K. (1980). Structural Analysis and Design. Marcel Dekker.
Dyfyniad Arddull ChicagoHeins, Conrad. P., and N. Kenneth Derucher. Structural Analysis and Design. New York: Marcel Dekker, 1980.
Dyfyniad MLAHeins, Conrad. P., and N. Kenneth Derucher. Structural Analysis and Design. Marcel Dekker, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.