TY - COMP TI - CD-CAD [electronic resource] Version 3.7 AU - Karr, David. PB - Wizardware [distributor] PP - Bethlehem, Pa. : Wizardware [distributor], c1992. PY - 1992 UR - https://library.korea.ac.kr/detail/?cid=CAT000045673294&ctype=c