PHOTOCHEMISTRY AND ENZYMOLOGY OF PHOTOSYNTHESIS. Three Year Technical Progress Report, May 1, 1969--April 30, 1972., report, January 1, 1972; (https://digital.library.unt.edu/ark:/67531/metadc1035057/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .