OBLA, K. H. (2015). Improving concrete quality. CRC Press.
Chicago-čujuhus (17. p.)OBLA, Karthikeyan H. Improving Concrete Quality. CRC Press, 2015.
MLA-čujuhus (9. p.)OBLA, Karthikeyan H. Improving Concrete Quality. CRC Press, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.