TY  - BOOK
AU  - Bethune,James D.
TI  - Essentials of drafting
SN  - 0132844303
PY  - 1977///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Mechanical drawing
N1  - Includes bibliographical references (p. 381) and index
ER  -