1. Bioeconomics of aquaculture;Allen,1984
2. The intensive culture of Tilapia in tanks, raceways and cages;Balarin,1982
3. Seedling density influences the early growth of planted sycamore;Belanger;Forest Science,1978
4. Singular optimal control problems;Bell,1975
5. Multiple use management of public forestlands;Bowes,1985