na INLIS000000000001119 20240419041736 0010-0424000055 ta 240419 g 0 eng 624.12 624.12 MEH t MEHRING, C.W Tipton and Kalmbach : Consulting Engineers / C.W. Mehring, E.R. Mighell, D.D. Helton, A.J. Deutch, J.H. Turner Colorado - USA : Denver, Colorado, 1980 80 hal : ils.; lamp ; 21 x 29 cm Tipton Kalmbach Consulting Engineers MIGHELL, E.R HELTON, D.D 001628