A programmed introduction to number systems
By: Irving Drooyan, Walter Hadel.
Contributors: Hadel, Walter.
Edition: 2nd ed.
Publisher: Wiley
Published: 1973
Place of publication: New York; (Chichester)
Language: eng
Number of pages: 283
Subjects: Numbers, Theory of -- Programmed instruction.
Notes: With answers. - Title page imprint, London.

Previous ed., New York, Wiley, 1964.

Includes index.