Symposium Crop Science Society of America Las Vegas, N., Crop Science Society of America. Division C-1, Crop Science Society of America. Division C-4, McDonald, M. B., & Pardee, W. D. (1985). The role of seed certification in the seed industry: Proceedings of a symposium. Volume 10. Madison, Wisconsin: Crop Science Society of America ; American Society of Agronomy.

Symposium Crop Science Society of America Las Vegas, Nevada), Crop Science Society of America. Division C-1, Crop Science Society of America. Division C-4, M. B. McDonald, and W. D. Pardee. The Role of Seed Certification in the Seed Industry: Proceedings of a Symposium. Volume 10. Madison, Wisconsin: Crop Science Society of America ; American Society of Agronomy, 1985.

Symposium Crop Science Society of America Las Vegas, Nevada), et al. The Role of Seed Certification in the Seed Industry: Proceedings of a Symposium. Volume 10. Madison, Wisconsin: Crop Science Society of America ; American Society of Agronomy, 1985.