APA

Gutt W., . (1974). Use of by-products in concrete. Garston, Watford: U.K Department of the Environment. Building Research Establishment. Current paper 53/74.

Chicago

Gutt W, . 1974. Use of by-products in concrete. Garston, Watford: U.K Department of the Environment. Building Research Establishment. Current paper 53/74.

Harvard

Gutt W., . (1974). Use of by-products in concrete. Garston, Watford: U.K Department of the Environment. Building Research Establishment. Current paper 53/74.

MLA

Gutt W, . Use of by-products in concrete. Garston, Watford: U.K Department of the Environment. Building Research Establishment. Current paper 53/74. 1974.