机读格式显示(MARC)

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• 001 0000506077

• 003 CAL

• 005 20050324102600.0

• 008 050324s1993 cc 001 0 eng

• 010 __ |a 89649729 |z sc 89035001

• 020 __ |a 7506215799

• 035 __ |a (OCoLC)18659181

• 040 __ |a TONL |c TONL |d DLC |d MH |d DLC |d NST |d N

• 042 __ |a lc

• 050 00 |a Z7405.D55 |b D57 |a Q145

• 082 00 |a 016.5025 |2 20

• 090 __ |a Z831/D598=6

• 093 __ |a Z831 |2 4

• 099 __ |a CAL 022000218758 |a CAL 022000320013 |a CAL 022000914711

• 245 00 |a Directory of technical and scientific directories : |b a world bibliographic guide to medical, agricultural, industrial, and natural science directories.

• 260 __ |a Beijing : |b World Pub. Co., |c 1993.

• 250 __ |a 6th ed.

• 300 __ |a 302 p. ; |c 26 cm.

• 534 __ |p Reprinted. Originally published: |c London : Longman, 1989. |b 6th ed.

• 490 0_ |a Reference on research

• 650 _0 |a Science |x Directories |v Bibliography.

• 650 _0 |a Technology |x Directories |v Bibliography.

• 950 __ |a JHUL |b Z831 |c D598=6