机读格式显示(MARC)

• 000 00771nam a2200253 a 4500

• 001 0000332161

• 003 CAL

• 005 20200806164700.0

• 008 850307s1943 enka b 000 0 eng

• 010 __ |a 43010850

• 040 __ |a DLC |c IQU |d YUS |d WaOLN

• 050 00 |a QC544.V3 |b H3

• 090 __ |a TN11/H341

• 093 __ |a TN11 |2 4

• 094 __ |a 73.61/H341

• 099 __ |a CAL 022003117768

• 100 1_ |a Harvey, A. F. |q (Arthur Frank). |0 CAL n2005100391# |7 ba0yba0y

• 245 10 |a High frequency thermionic tubes / |c by A. F. Harvey, with a foreword by E. B. Moullin.

• 260 __ |a London : |b Chapman & Hall ltd., |c 1943.

• 300 __ |a viii, 235 p. : |b illus., diagrs. ; |c 22 cm.

• 504 __ |a Includes bibliographical references.

• 650 _0 |a Vacuum-tubes.

• 920 __ |a 215010 |z 1

• 998 __ |a NMU