APA (7e ed.) Bronvermelding

Não informado. (1970). Cement technology. Cement and Concrete Association.

Chicago (17e ed.) Bronvermelding

Não informado. Cement Technology. London: Cement and Concrete Association, 1970.

MLA (8e ed.) Bronvermelding

Não informado. Cement Technology. Cement and Concrete Association, 1970.

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