Article PDF
Rights and permissions
About this article
Cite this article
Miscellaneous Intelligence. Nature 224, 842 (1969). https://doi.org/10.1038/224842a0
Issue Date:
DOI: https://doi.org/10.1038/224842a0
Nature volume 224, page 842 (1969)
Miscellaneous Intelligence. Nature 224, 842 (1969). https://doi.org/10.1038/224842a0
Issue Date:
DOI: https://doi.org/10.1038/224842a0