The effect of lack of formal schooling on number development
Published: 1965
Place of publication: [East Lansing]
Language: eng
Number of pages: 67
Subjects: Number concept
Notes: Photoreproduction.  Ann Arbor, Mich.  University Microfilms, 1969.

Thesis (Ph.D.)--Michigan State University.  College of Education.

Bibliography:  leaves 64-65.