Cita APA (7a ed.)

Concrete Society of Southern Africa. (1971). Concrete. Brooke/Patrick.

Cita Chicago Style (17a ed.)

Concrete Society of Southern Africa. Concrete. Bedfordview, Africa do Sul: Brooke/Patrick, 1971.

Cita MLA (8a ed.)

Concrete Society of Southern Africa. Concrete. Brooke/Patrick, 1971.

Precaución: Estas citas no son 100% exactas.