00398nam a22001457a 4500 HB. FIZZA ISHAQ 621.384 KAU Kaufman, Milton. 41683 Radio operator's license Q & A manual / Milton Kaufman. 5th edition. New York: J. F. Rider Publisher, Inc. 1955. 735 P. ; 21.5 cm ddc BK 617343 617343 0 0 ddc 0 0 NQC NQC GEN 2026-05-07 0 621.384 KAU QD-753 2026-05-07 2026-05-07 BK