His publications include 200 papers. His advanced textbooks have influenced generations of mathematicians; some of Cassels's books have remained in print for decades.
Cassels, J. W. S. (1966), "Diophantine equations with special reference to elliptic curves", J. London Math. Soc., 41: 193–291,
doi:
10.1112/jlms/s1-41.1.193,
MR0199150
Cassels, J. W. S. (1978), Rational quadratic forms, London Mathematical Society Monographs, vol. 13, London-New York: Academic Press, Inc. [Harcourt Brace Jovanovich, Publishers],
ISBN0-12-163260-1,
MR0522835[3]
Cassels, J.W.S. (1981). Economics for mathematicians. London Mathematical Society Lecture Note Series. Vol. 62. Cambridge-New York: Cambridge University Press. pp. xi+145.
ISBN0-521-28614-X.
MR0657578. [4]
Cassels, J. W. S.; Flynn, E. V. (1996), Prolegomena to a middlebrow arithmetic of curves of genus 2, London Mathematical Society Lecture Note Series, vol. 230, Cambridge: Cambridge University Press,
doi:
10.1017/CBO9780511526084,
ISBN0-521-48370-0,
MR1406090
^Reviewed in:
Johnson, Charles (1983) Economics For Mathematicians (J. W. S. Cassels), SIAM Rev., 25(4), 596–597. AND
Binmore, Ken (1982) CASSELS, J. W. S., Economics for mathematicians, The Bulletin of the London Mathematical Society, Volume XIV [K. G. Binmore] p 269 and
Gale, D. (1983). [Review of Economics for Mathematicians, by J. W. S. Cassels]. The Mathematical Gazette, 67(439), 68–69.
https://doi.org/10.2307/3617384