Nolla, J. A. B. “INHERITANCE IN NICOTIANA. I. STUDY OF THE GLAUCOUS AND THE YELLOW CHARACTERS IN N. TABACUM L”. The Journal of Agriculture of the University of Puerto Rico 18, no. 4 (October 1, 1934): 443–462. Accessed December 26, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/14272.