Lidicker, W. Z.; Patton, J. L. "In Memoriam: Oliver Payne Pearson". Online Biographies of UC Faculty and Administrators. University of California. Archived from the original on 2012-02-21. Retrieved 2012-05-11.
web.archive.org
Lidicker, W. Z.; Patton, J. L. "In Memoriam: Oliver Payne Pearson". Online Biographies of UC Faculty and Administrators. University of California. Archived from the original on 2012-02-21. Retrieved 2012-05-11.