APA (7e ed.) Bronvermelding

Não informado. (1977). World cement technology. Cement and Concrete Association.

Chicago (17e ed.) Bronvermelding

Não informado. World Cement Technology. London: Cement and Concrete Association, 1977.

MLA (8e ed.) Bronvermelding

Não informado. World Cement Technology. Cement and Concrete Association, 1977.

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