National symposium on Crop pest and disease management: challenges for the next millennium 27-28 November 1999,
Gupta R L
National symposium on Crop pest and disease management: challenges for the next millennium 27-28 November 1999, National symposium on Crop pest and disease management: challenges for the next millennium 27-28 November 1999, Souvenir and Abstracts Gupta R L; - New Delhi Society of plant protection sciences 1999 - 157pp
Plant protection
632.90216/GUP
National symposium on Crop pest and disease management: challenges for the next millennium 27-28 November 1999, National symposium on Crop pest and disease management: challenges for the next millennium 27-28 November 1999, Souvenir and Abstracts Gupta R L; - New Delhi Society of plant protection sciences 1999 - 157pp
Plant protection
632.90216/GUP