Helfrick, Albert D.
Practical repair and maintenance of communications equipment / Albert D. Helfrick. - Englewood Cliffs, N.J. : Prentice-Hall, c1983. - xii, 308 p. : ill.
0136935567
Radio--Repairing.
Practical repair and maintenance of communications equipment / Albert D. Helfrick. - Englewood Cliffs, N.J. : Prentice-Hall, c1983. - xii, 308 p. : ill.
0136935567
Radio--Repairing.