Office of the Executive Vice Chancellor and Provost - 1987 PERRY, K. B., BLANKENSHIP, S. M., & UNRATH, C. R. (1987). PREDICTING HARVEST DATE OF DELICIOUS AND GOLDEN DELICIOUS APPLES USING HEAT UNIT ACCUMULATIONS. AGRICULTURAL AND FOREST METEOROLOGY, 39(1), 81–88. https://doi.org/10.1016/0168-1923(87)90018-9 Le Cren, E. D., & Nielsen, L. A. (1987). Case studies in fisheries management. Blacksburg: Virginia Polytechnic Institute and State University, Dept. of Fisheries and Wildlife Sciences. Tinsley, V. R., & Nielsen, L. A. (1987). Administrative arrangements for managing fisheries on interstate borders. Virginia Journal of Natural Resources Law, 6, 263–321. Nielsen, L. A. (1987). Designing natural resource education: Lessons from real professions. Transactions of the North American Wildlife and Natural Resources Conference, 52, 714–721. Nielsen, L. A., & Kapetsky, J. A. (1987). FAO: extension on a worldwide scale. Fisheries, 12(1), 6–9.