机读格式显示(MARC)

• 000 00740nam a2200253 4500

• 001 0000330990

• 003 CAL

• 005 20200803152700.0

• 008 770310s1951 nyua b 000 0 eng

• 010 __ |a 51014262

• 035 __ |a (OCoLC)ocm02791553

• 040 __ |a DLC |c LDL |d UKM |d YUS

• 050 00 |a TK6565.V3 |b K65

• 090 __ |a TN110.4/K79

• 093 __ |a TN110.4 |2 4

• 099 __ |a CAL 022002129261

• 100 1_ |a Kohl, Walter Heinrich, |d 1905- |0 CAL n2004525830# |7 ba0yba0y

• 245 10 |a Materials technology for electron tubes.

• 260 __ |a New York : |b Book Division, Reinhold Pub. Corp., |c 1951.

• 300 __ |a xv, 493 p. : |b illus. ; |c 24 cm.

• 504 __ |a Includes bibliographical and index.

• 650 _0 |a Vacuum-tubes.

• 920 __ |a 235010 |z 2

• 998 __ |a XMU