456069 Timms, A. G., & Gries, W. E. Use of fly ash in concrete.
Chicago Style (17th ed.) Citation456069 Timms, Albert G., and William E. Gries. Use of Fly Ash in Concrete.
MLA (9th ed.) Citation456069 Timms, Albert G., and William E. Gries. Use of Fly Ash in Concrete.
Warning: These citations may not always be 100% accurate.