Hjelmstad, K. D. (1997). Fundamentals of structural mechanics. New Jersey: Prentice-Hall.
Trích dẫn kiểu ChicagoHjelmstad, Keith D. Fundamentals of Structural Mechanics. New Jersey: Prentice-Hall, 1997.
MLA引文Hjelmstad, Keith D. Fundamentals of Structural Mechanics. New Jersey: Prentice-Hall, 1997.
警告：這些引文格式不一定是100％准確.