J. De Vries
Books
- Lymphokines
- The cost implications of owning and operating forest machinery in Australia
- Radio bij de navigatie ter zee
- Constraints to successful communal production
- Has extension failed?
- Selected bibliography on agricultural extension in Tanzania
- Columbia, gisteren, vandaag en morgen; met zestien illustraties
- European Urbanisation
- Realistic Weight Control (By Appointment Only)
- How to Live a Healthy Life (Jan de Vries Healthcare)
- Ujamaa villages and problems of institutional change, with emphasis on agricultural extension and development
Author data: Open Library