United States department of agriculture, Economic research service, Caswell, M., Fuglie, K., & Ingram, C. (2001). Adoption of agricultural production practices: Lessons learned from the U. S. department of agriculture area studies project.
Չիկագոյի ոճի (17րդ խմբ.) մեջբերումUnited States department of agriculture, Economic research service, Margriet Caswell, Keith Fuglie, and Cassandra Ingram. Adoption of Agricultural Production Practices: Lessons Learned from the U. S. Department of Agriculture Area Studies Project. 2001.
MLA (9րդ խմբ.) ՄեջբերումUnited States department of agriculture, et al. Adoption of Agricultural Production Practices: Lessons Learned from the U. S. Department of Agriculture Area Studies Project. 2001.