"thorkil, s0e . "
technical drawing for civil engineers: / s0e.. thorkil - 1 ed. - kenya : e.a.l.b. 1973. - ", 69p.; 21 cm."
T351.5 / .T46 1973
technical drawing for civil engineers: / s0e.. thorkil - 1 ed. - kenya : e.a.l.b. 1973. - ", 69p.; 21 cm."
T351.5 / .T46 1973