The development of logical thinking in pre-school Zambian children
Subtitle: classification
By: by M.O. Okonji.
Series: H.D.R.U. reports ;; no. 23
Publisher: Human Development Research Unit, University of Zambia
Published: 1972
Place of publication: Lusaka
Language: eng
Number of pages: 13
Subjects: Reasoning in children -- Zambia.; Categorization (Psychology) -- Testing.
Notes: Bibliography: leaf [14]