Baumgarner, M. F., & Baumgarner, M. F. (1976). Using satellites and computers to inventory the natural resources of the Tempisque Valley: A report to the Inter-American Development Bank and the Government of Costa Rica. West Lafayette, Ind.: Laboratory for Applications of Remote Sensing Lars Purdue University.

Baumgarner, Marion F., and Marion F. Baumgarner. Using Satellites and Computers to Inventory the Natural Resources of the Tempisque Valley: A Report to the Inter-American Development Bank and the Government of Costa Rica. West Lafayette, Ind.: Laboratory for Applications of Remote Sensing Lars Purdue University, 1976.

Baumgarner, Marion F., and Marion F. Baumgarner. Using Satellites and Computers to Inventory the Natural Resources of the Tempisque Valley: A Report to the Inter-American Development Bank and the Government of Costa Rica. West Lafayette, Ind.: Laboratory for Applications of Remote Sensing Lars Purdue University, 1976.