Jirsa, J. O. The effects of pattern loagings on reinforced concrete floor slabs - Urbana : University of Illinois, 1963 - 145 p. : ilus - Civil engineering studies. Structural research series ; 269 . - Civil Engineering Studies Structural Research Series ; 269 . LCCN: 17212 Subjects--Topical Terms: Concreto reforzado.Concreto--Construcciones. Dewey Class. No.: 693.5 / J57