1. Abramowitz and Stegun Handbook of Mathematical Functions AMS 55 U. S. Govt. Printing Office 1964 (for special functions). Abramowitz and Stegun Handbook of Mathematical Functions AMS 55 U. S. Govt. Printing Office 1964 (for special functions).
2. ACM Collected Algorithms modified SHARE classification in Index by Subject to Algorithms. ACM Collected Algorithms modified SHARE classification in Index by Subject to Algorithms.
3. Computer Program Abstracts (COSMIC) NASA U. S. Govt. Printing Office Cumulative Issue July 1971. Computer Program Abstracts (COSMIC) NASA U. S. Govt. Printing Office Cumulative Issue July 1971.
4. Fletcher Miller Rosenhead and Comrie An Index of Mathematical Tables 2nd ed. Blackwell 1962 (for special functions). Fletcher Miller Rosenhead and Comrie An Index of Mathematical Tables 2nd ed. Blackwell 1962 (for special functions).
5. IMSL Library 1 Reference Manual Third Edition Houston Texas 1973. IMSL Library 1 Reference Manual Third Edition Houston Texas 1973.