机读格式显示(MARC)
- 000 00463nam a22001817a 4500
- 008 081010s1956 xx 000 0 eng d
- 099 __ |a CALB022011175477
- 110 2_ |a International Telephone and Telegraph Corporation.
- 245 10 |a Reference data for radio engineers.
- 260 __ |a N. Y. : |b The Corporation, |c 1956.