Proceedings of the 5th Biennial noxious plants conference "Noxious plant control - responsibility, safety and benefits" [held at the] Northern Rivers College of Advanced Education, Lismore, 17th-21st July, 1989, Volume II /

Antzeko izenburuak

• Proceedings of the 5th bienniel noxious plants conference : "Noxious plant control - responsibility, safety and benefits", volume I, Northern Rivers College of Advanced education, Lismore, 17th - 21st July, 1989 /
  Argitaratua: (1989)
• Proceedings of the fourth biennial noxious plants conference, Hawkesbury Agricultural College, Richmond, N.S.W., 29th-3rd July, 1987 /
  Argitaratua: (1987)
• Noxious plants chemical control handbook /
  nork: Milvain, H. J.
  Argitaratua: (1988)
• Proceedings of the 1980 British Crop Protection Conference - Weeds (15th British Weed Control Conference), 17th to 20th November 1980,... /
  Argitaratua: (1980)
• Proceedings of the 1978 British Crop Protection Conference - Weeds (14th British Weed Control Conference), 20th to 23rd November, 1978, Hotel Metropole, Brighton, England /
  Argitaratua: (1978)