Bidrag till räknefärdighetens psykologi, en tvillingundersökning.
Publisher: Elanders boktr
Published: 1952
Place of publication: Göteborg
Language: swe
Number of pages: 173
Subjects: Arithmetic -- Study and teaching.
Notes: Bibliography: p. [165]-171.
Akademisk avhandling--Göteborgs högskola.
Extra t. p., with thesis statement, inserted.
Summary in English.