Tables of sine, cosine and exponential integrals ... Prepared by the Federal works agency, Work projects administration for the city of New York, as a report of Official project no. 765-97-3-10.
Subtitle: Arnold N. Lowan, PH. D., technical director.  Conducted under the sponsorship of the National bureau of standards
Published: 1940
Place of publication: [New York city]
Language: eng
Subjects: Exponential functions.; Mathematics -- Tables.; Trigonometrical functions