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Mathematics Without Definitions
Pythagorean Triangles with Sum and Difference of Legs Equal to a Prime." Dissertation
"References for #2420," (a short bibliographic note) Amer. Math Monthly, Jun. - Jul. (1974).
"A Computer Test of a Conjecture About Primitive Pythagorean Triples," jointly with J. A. Wehlen. Notices of AMS, vol. 22, Feb. (1975) p. A - 304.
"Pythagorean Triangles," jointly with J. A. Wehlen. Fib. Quart. vol. 13, Apr. (1975) pp.110 - 120. [The full 23 page text was sold by Fibonacci Quarterly].
"Primitive Pythagorean Triples with Sum or Difference of Legs Equal to a Prime," Fib. Quart., vol. 13, Oct. (1975) pp. 263 - 277.
"Semi-Associates in Z[sqrt(2)] and Primitive Pythagorean Triples," Fib. Quart., vol. 15, Oct. (1977) pp. 258 - 264.
"Pythagorean Triples and the Infinitude of Primes," Fib. Quart., vol. 19, Dec. (1981).
"An Application of Pell's Equation," Fib. Quart., vol. 19 Dec. (1981).
Elements of Number Theory, Prindle, Weber & Schmidt, Boston, MA, (with I. A. Barnett in 1969). Revised in 1971 with J. A. Wehlen.
Critical Thinking Approach to Competency Arithmetic, MTE, Denver, CO, 1996.
Critical Thinking Approach to Geometric and Measurement Topics, MTE, Denver, CO, 1989.
Critical Thinking Approach to Beginning Algebra, MTE, Denver, CO, 1989
Critical Thinking Approach to Intermediate Algebra, MTE, Denver, CO, 1989
Critical Thinking Approach to College Algebra, MTE, Denver, CO, 1994.
Critical Thinking Approach to Pre-Calculus, MTE, Denver, CO, 1995.
Concepts and Skills in Basic Mathematics, vols. I, II, III, Kendall/Hunt, Dubuque, IA, 1979.
Basic Algebra, Prindle, Weber & Schmidt, Boston, MA, 1975.