Cita APA (7a ed.)

Portland Cement Association. (1959). Soil - cement laboratory handbook. Portland Cement Association.

Cita Chicago Style (17a ed.)

Portland Cement Association. Soil - Cement Laboratory Handbook. Illinois: Portland Cement Association, 1959.

Cita MLA (8a ed.)

Portland Cement Association. Soil - Cement Laboratory Handbook. Portland Cement Association, 1959.