Article PDF
Rights and permissions
About this article
Cite this article
Mr. Jaques Cattell. Nature 189, 184 (1961). https://doi.org/10.1038/189184b0
Issue Date:
DOI: https://doi.org/10.1038/189184b0
Nature volume 189, page 184 (1961)
Mr. Jaques Cattell. Nature 189, 184 (1961). https://doi.org/10.1038/189184b0
Issue Date:
DOI: https://doi.org/10.1038/189184b0