"heard, w e. "
technical drawing:an approach to cse: / w.e. heard - 1 ed. - uk : macmillan 1972. - ", 96p.; 25 cm."
744. hea
technical drawing:an approach to cse: / w.e. heard - 1 ed. - uk : macmillan 1972. - ", 96p.; 25 cm."
744. hea