Spiegel, L., & Spiegel, L. (1986). Applied Structural Steel Design Leonard Spiegel And George F. Limbrunner. Prentice-Hall.
Chicago (17e ed.) BronvermeldingSpiegel, Leonard, en Leonard Spiegel. Applied Structural Steel Design Leonard Spiegel And George F. Limbrunner. Prentice-Hall, 1986.
MLA (8e ed.) BronvermeldingSpiegel, Leonard, en Leonard Spiegel. Applied Structural Steel Design Leonard Spiegel And George F. Limbrunner. Prentice-Hall, 1986.
Let op: Deze citaties zijn niet altijd 100% accuraat.