Research Bulletin /
Research Bulletin /
Iowa State College of Agriculture and Mechanic Arts.
- Ames IA, 1911-
Od No. 476 (1960) / Iowa State University of Science and Technology.
0097-3416 = Res. Bull. Iowa State Coll. Agric. Mech. Arts
Od No. 476 (1960) / Iowa State University of Science and Technology.
0097-3416 = Res. Bull. Iowa State Coll. Agric. Mech. Arts