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https://d.lib.msu.edu/teegr/70/OBJ/view#page=511/13/17PDF ReaderItem is within a single large file
https://listings.lib.msu.edu/teegr/1978jul.pdf#page=505/01/2017PDF ReaderItem is within a single large file
https://archive.lib.msu.edu/tic/groot/article/1978[...]05/01/2017PDF ReaderThe Grass Roots reprint