BUTLER, R. B. (1994). Architectural and engineering calculations manual. McGraw Hill.
Chicago (17e ed.) BronvermeldingBUTLER, Robert Brown. Architectural and Engineering Calculations Manual. New York: McGraw Hill, 1994.
MLA (9e ed.) BronvermeldingBUTLER, Robert Brown. Architectural and Engineering Calculations Manual. McGraw Hill, 1994.
Let op: Deze citaties zijn niet altijd 100% accuraat.