Ludwig, Oswald A.
Metalwork : technology and practice. / Oswald A. Ludwig, Willard J. McCarthy, Victor E. Repp. - 6th ed. - Bloomington, Ill. : McKnight, 1975. - xii, 658 p. : ill. - McKnight career publication .
0873451171
93034213
Machine-shop practice.
Metal-work
Metalwork : technology and practice. / Oswald A. Ludwig, Willard J. McCarthy, Victor E. Repp. - 6th ed. - Bloomington, Ill. : McKnight, 1975. - xii, 658 p. : ill. - McKnight career publication .
0873451171
93034213
Machine-shop practice.
Metal-work