North Carolina Agricultural Research Service - 1994

Stuber, C. W. (1994). Heterosis in plant breeding. Plant Breeding Reviews, 12, 227. https://doi.org/10.1002/9780470650493.ch8

Boston, R. S., Bass, H. W., & OBrian, G. R. (1994). DNA encoding a ribosome inactivating protein. Washington, DC: U.S. Patent and Trademark Office.