Upton, Martin
Agricultural Production economics and resource-use - Oxford University Press 1976 - 357
0-19-859452-6
Agricultural production-Economics/ Farm production-Economics/ Linear Production relationships
338. 1 UPT
100
Agricultural Production economics and resource-use - Oxford University Press 1976 - 357
0-19-859452-6
Agricultural production-Economics/ Farm production-Economics/ Linear Production relationships
338. 1 UPT
100