Kitabu hiki huenda hakitapatikana katika uchapishaji.
87 pages, illustrated, photos
Bulletin 311
Maelezo ya Uchapishaji
- Limechapishwa: 1937
- Mchapishaji: Agricultural Experiment Station, South Dakota State College of Agriculture and Mechanic Arts
- Dewey Decimal: 630.7
- Maktaba ya ECHO: 630.7 AES