TY - BOOK AU - Ackerman Joseph AU - Clawson Marion AU - Harris Marshall TI - Land economics research U1 - 333.072 PY - 1962/// CY - Washington PB - Resource for the future KW - Economic research KW - Land economics N1 - Papers presented at a symposium held at Lincoln,Nebraska,June 16-23,1961 under the joint sponsorship of Farm Foundation and Resources for the future ER -