A Selection of Problems in the Theory of Numbers
Volume 11 of the series Popular Lectures in Mathematics
Waclaw Sierpinski
Pergamon Press, New York: 1964
Hardcover. 126 pages. LCCN 63-022531
Über einige neuere fortschritte der additiven zahlentheorie
Edmund Landau
Unknown publisher, Cambridge: 1937
Unknown binding. German. LCCN 37022089
Old and new problems and results in combinatorial number theory
Paul Erdos
L'Enseignement mathématique, Université de Genève, Genève: 1980
Unknown binding. 128 pages. LCCN 81-131486
On Some of the SmarandacheÕs Problems, Vol. 1
Krassimir T. Atanasson and M. L. Perez
American Research Press, Lupton, AZ: 1999
Paperback. 88 pages. ISBN 1-879585-72-3
Problems in Algebraic Number Theory
Volume 190 of the series Graduate texts in mathematics
Jody Esmonde and M. Ram Murty
Springer-Verlag, New York: 1999
Hardcover. 314 pages. ISBN 0-387-98617-0 LCCN 98-030323
Theory of Numbers: a Text and Source Book of Problems
Andrew Adler
Jones and Bartlett, City of publication unknown: 1995
Unknown binding. ISBN 0-86720-472-9