 | Grizzell, William G., 1932- 4n | (2) |
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 | Grizzell, William G., 1932- 4n; Mechanical sizing of celery stalks by weight / . Washington, D.C. : Agricultural Research Service, U.S. Dept. of Agriculture, 1968. | |
| Grizzell, William G., 1932- 4n; A central packing-precooling system for celery / . Washington, D.C. : Agricultural Research Service, U.S. Dept. of Agriculture, 1971. | |
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