141. Volume 51, Number 4: American journal of agricultural economics Collection: Core Historical Literature of Agriculture Publisher: American Agricultural Economics Association Publication Place: Menasha, Wis. Date: 1969 Format: Issue
142. Volume 51, Number 5: American journal of agricultural economics Collection: Core Historical Literature of Agriculture Publisher: American Agricultural Economics Association Publication Place: Menasha, Wis. Date: 1969 Format: Issue
143. Number 1026: Bulletin Collection: Core Historical Literature of Agriculture Publisher: Cornell University Agricultural Experiment Station, New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1969 Format: Issue
144. Number 1024: Bulletin Collection: Core Historical Literature of Agriculture Publisher: Cornell University Agricultural Experiment Station, New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1969 Format: Issue
145. Volume XVIII, Number 1: Arkansas farm research Collection: Core Historical Literature of Agriculture Publisher: Agricultural Experiment Station, University of Arkansas Publication Place: Fayetteville, Ark. Date: 1969 Format: Issue
146. Volume XVIII, Number 2: Arkansas farm research Collection: Core Historical Literature of Agriculture Publisher: Agricultural Experiment Station, University of Arkansas Publication Place: Fayetteville, Ark. Date: 1969 Format: Issue
147. Volume XVIII, Number 3: Arkansas farm research Collection: Core Historical Literature of Agriculture Publisher: Agricultural Experiment Station, University of Arkansas Publication Place: Fayetteville, Ark. Date: 1969 Format: Issue
148. Volume XVIII, Number 4: Arkansas farm research Collection: Core Historical Literature of Agriculture Publisher: Agricultural Experiment Station, University of Arkansas Publication Place: Fayetteville, Ark. Date: 1969 Format: Issue
149. Volume XVIII, Number 5: Arkansas farm research Collection: Core Historical Literature of Agriculture Publisher: Agricultural Experiment Station, University of Arkansas Publication Place: Fayetteville, Ark. Date: 1969 Format: Issue
150. Volume XVIII, Number 6: Arkansas farm research Collection: Core Historical Literature of Agriculture Publisher: Agricultural Experiment Station, University of Arkansas Publication Place: Fayetteville, Ark. Date: 1969 Format: Issue
