Significance and implications in ecology and pest management : Papers discussed at the International conference on the significance of insect and mite nutrition, April 25-28, 1972, University of Kentucky, Lexington
(1972)
Proceedings of a symposium organized by the Department of Home Economics, Agricultural University Wageningen, the Netherlands 18-20 January 1979
(1979)
Report of a symposium held at the Faculty of Agriculture, Forestry and Veterinary Science, University of Dar es Salaam, Morogoro, Tanzania, 10-12 May 1976
(1976)
![Национална конференция с международно участие на тема: „Биологични растениевъдство, животновъдство и храни”, [27-28 ноември 2014 г., Троян] [Електронен ресурс] : доклади, постери](https://eclipse.agriacad.bg/storage/img/52/1006/T0156348.jpg?1788914030)