A little tricky but turns out Sci-hub had a proxy which could go through the Hein Online paywall (at least, once you figure out you have to specify the page-range of the article! what the heck):
https://pdf.yt/d/DM3BGcxxfb3x_HKK / https://www.dropbox.com/s/5u266r5ubijz2bi/1972-tribe.pdf / http://sci-hub.org/downloads/baaf/10.0000@heinonline.org@generic-EF457CE69B6D.pdf
Excellent. Thanks very much.
A little tricky but turns out Sci-hub had a proxy which could go through the Hein Online paywall (at least, once you figure out you have to specify the page-range of the article! what the heck):
https://pdf.yt/d/DM3BGcxxfb3x_HKK / https://www.dropbox.com/s/5u266r5ubijz2bi/1972-tribe.pdf / http://sci-hub.org/downloads/baaf/10.0000@heinonline.org@generic-EF457CE69B6D.pdf
Excellent. Thanks very much.