1. Mathematical tables;Anonymous,1937
2. Bowman, F., , Introduction to Bessel functions, 78- 86 Longmans, Green and Co., London, 1938,
3. Dwight, H. B., , , Tables of integrals and other mathematical data, , pp. 168– -172 , MacMillan, , New York, , Re Ed., 1947, .
4. Radial flow in a leaky artesian aquifer;Jacob;Trans. Amer. Geophys.,Union,1946
5. Reduction in seepage to soil underdrains resulting from their partial embedment in, or proximity to, an impervious substratum;Kirkham;Soil Sci. Soc. Amer., Proc.,1947