Copyright © 1940 by the University of Chicago; Copyright © 1967 by Edward H. Spicer;  Copyright © 1984 by The Arizona Board of Regents. The text of this book is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0), https://creativecommons.org/licenses/by-nc-nd/4.0/.
Except where otherwise noted, this item's license is described as Copyright © 1940 by the University of Chicago; Copyright © 1967 by Edward H. Spicer; Copyright © 1984 by The Arizona Board of Regents. The text of this book is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0), https://creativecommons.org/licenses/by-nc-nd/4.0/.