Nuclear Wallet Cards (eighth edition, 2011) in PDF format, in html format
(site NNDC, USA)
This booklet presents selected properties of all known nuclides and their known isomeric states.
ENDF/B libraries & manuals
There are the newest Evaluated Nuclear Data Files (B type) for Sublibrary #10 (neutron) and ENDF format manual.
CSISRS/EXFOR (site Nuclear Data Section, IAEA, Vienna, Austria)
Experimental data on nuclear reactions contain data for incident neutrons, charged particles and photons.
Manuals on EXFOR format EXFOR and
ENSDF (site National Nuclear Data Center, Brookhaven, USA)
The ENSDF database contains evaluated nuclear structure and decay information for over 3000 nuclides.
There are some special-purpose libraries.
CINDA (site Nuclear Data Section, IAEA, Vienna, Austria)
CINDA contains bibliographic references to measurements, calculations, reviews, and evaluations of neutron cross-sections and other microscopic neutron data.
Since 2005, database is extended by photonuclear and charged particle reaction data.