Environmental effects on concrete 5 reports.
| Awduron Corfforaethol: | , | 
|---|---|
| Fformat: | Llyfr | 
| Iaith: | English | 
| Cyhoeddwyd: | Washington, D.C.
          National Academy of Science - National Research Council
    
        1970. | 
| Cyfres: | Highway research record
              no. 342. | 
| Pynciau: | 


