Subject Term
- Germany1
- Green Revolution1
- Hoard, W. D.1
- India2
- Iraq (Western Asia)1
- Latin America2
- Mexico (Latin America; Central America)1
- New Zealand1
- Paraguay (Latin America; South America)1
- Peru (Latin America; South America)1
- Philippines1
- Poe, Clarence1
- Portugal1
- Reiman, Roy1
- SNAP1
- Sanders, Alvin H.1
- Scotland1
- Scruggs, Charles1
- Southern Cultivator1
- The Philippines1