1. Introduction to agricultural economics Creator: Gray, L. C. Collection: Core Historical Literature of Agriculture Publisher: The Macmillan Company, Publication Place: New York : Date: 1924 Format: Book
2. History of agriculture in the southern United States to 1860: Volume I. Creator: Gray, L. C. Collection: Core Historical Literature of Agriculture Publisher: Carnegie Institution of Washington, Publication Place: Washington : Date: 1933 Format: Book
3. History of agriculture in the southern United States to 1860: Volume II. Creator: Gray, L. C. Collection: Core Historical Literature of Agriculture Publisher: Carnegie Institution of Washington, Publication Place: Washington : Date: 1933 Format: Book