International Publishers
A
Academic Press
,
American Institute of Physics
B
BIOSIS
,
Blackwell
C
CAB Publishing
,
Cambridge Scientific Abstracts
,
Churchill Livingstone
,
CINAHL Information Systems
D
Dawson
,
Derwent Information Limited
E
EBSCO
,
Elsevier Science
G
Gale
H
H.W. Wilson Company
,
Harcourt Brace
I
IHS
,
Ingenta
connect
,
Institute of Electrical and Electronics Engineers (IEEE)
K
Karger
,
Karger AG
L
Library of Congress
M
McGrawHill
,
McMillan
,
Micropatent
N
Northern Light
O
Oxford University Press(UK)
,
Oxford University Press(USA)
P
Peterson's Information Services
,
Prentice Hall
R
Royal Society of Chemistry (RSC)
S
Science Direct
,
Springer-Verlag
T
Taylor & Francis Group