Fourier integrals for practical applications, by George A. Campbell and Ronald M. Foster. Campbell, George A. (George Ashley), 1870-1954. Foster, Ronald Martin, 1896- joint author. Fourier series. QA404 .C25 1948 517.7 CAF New York, D. Van Nostrand Co. [1948] [1948] 1948 Text iii, 177 p. eng