"orton, d n. "
notes for draughtsmen:a pratical manual fo students: / d.n. orton - ed. - uk : macdonald 1971. - ", 122p.; 24 cm."
includes bibliography
356 03409 9
--
604. 2 ort
notes for draughtsmen:a pratical manual fo students: / d.n. orton - ed. - uk : macdonald 1971. - ", 122p.; 24 cm."
includes bibliography
356 03409 9
--
604. 2 ort