Cita APA

Portland Cement Association. (1973). PCA soil primer. Portland Cement Association.

Citación estilo Chicago

Portland Cement Association. PCA Soil Primer. Stokie, Ill.: Portland Cement Association, 1973.

Cita MLA

Portland Cement Association. PCA Soil Primer. Portland Cement Association, 1973.

Warning: These citations may not always be 100% accurate.