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McManis DL. Conservation of identity and equivalence of quantity by retardates. J Genet Psychol. 1969;115(1):63-9doi: 10.1080/00221325.1969.10533871.
McManis, D. L. (1969). Conservation of identity and equivalence of quantity by retardates. The Journal of genetic psychology, 115(1), 63-9. https://doi.org/10.1080/00221325.1969.10533871
McManis, D L. "Conservation of identity and equivalence of quantity by retardates." The Journal of genetic psychology vol. 115,1 (1969): 63-9. doi: https://doi.org/10.1080/00221325.1969.10533871
McManis DL. Conservation of identity and equivalence of quantity by retardates. J Genet Psychol. 1969 Sep;115(1):63-9. doi: 10.1080/00221325.1969.10533871. PMID: 5365003.
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J Genet Psychol. 1969 Sep;115(1):63-9. doi: 10.1080/00221325.1969.10533871.

Conservation of identity and equivalence of quantity by retardates.

The Journal of genetic psychology

D L McManis

PMID: 5365003 DOI: 10.1080/00221325.1969.10533871

[No abstract available.]

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