Cedeño-Maldonado, Arturo, L. C. Liu, and Lilia Delgado. “EFFECT OF PHOTOSYNTHETIC INHIBITOR HERBICIDES ON NITRATE REDUCTASE ACTIVITY OF NON-TARGET SPECIES”. The Journal of Agriculture of the University of Puerto Rico 63, no. 3 (July 1, 1979): 412–414. Accessed February 5, 2023. https://revistas.upr.edu/index.php/jaupr/article/view/10300.