The child's conception of number
Inbunden bok. London, Routledge & Kegan Paul. 1964. ix+(1)+248+(2)+8 sidor.
Gott skick. Publisher's cloth with dust-jacket. Corners and spine ends are slightly bumped. Tears and slight loss of paper on the dust-jacket. Reprint of the 1952 edition. The International Library of Psychology, Philosophy and Scientific Method.