Brush, Stephen G. (June 1978). „Nettie M. Stevens and the Discovery of Sex Determination by Chromosomes“. Isis. 69 (2): 162–172. doi:10.1086/352001. JSTOR230427.
Brush, Stephen G. (June 1978). „Nettie M. Stevens and the Discovery of Sex Determination by Chromosomes“. Isis. 69 (2): 162–172. doi:10.1086/352001. JSTOR230427.