NIST Standard Reference Database 60, Version 2.0 (Web Version).
- Tables in NIST Monograph 175 were converted to machine readable format by Dean C. Ripple.
- Release date: July, 2000.
NIST Standard Reference Database 60, Version 1.01 (PC Version).
- Search and data processing program was written by Dean C. Ripple and Shari L. Young.
- Release date: October, 1995.