APA (7e ed.) Bronvermelding

Não informado. (2003). Concrete building and concret products. Cement and Concrete Association.

Chicago (17e ed.) Bronvermelding

Não informado. Concrete Building and Concret Products. London: Cement and Concrete Association, 2003.

MLA (8e ed.) Bronvermelding

Não informado. Concrete Building and Concret Products. Cement and Concrete Association, 2003.

Let op: Deze citaties zijn niet altijd 100% accuraat.