Osbourn, D. (1997). Introduction to building (2nd ed.). Longman.
Chicago (17e ed.) BronvermeldingOsbourn, Derek. Introduction to Building. 2nd ed. Harlow, Essex: Longman, 1997.
MLA (9e ed.) BronvermeldingOsbourn, Derek. Introduction to Building. 2nd ed. Longman, 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.