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- Pomologisches Institut Reutlingen.
- Pomona College (Claremont, Calif.). Department of Biology.
- Pomona College (Claremont, Calif.). Dept. of Zoology.
- Pomona College (Claremont, Calif.). Laguna Marine Laboratory.
- Pomona Floral Nurseries.
- Pomona Nurseries (Bowling Green, Ky.)
- Pomona Nurseries (Dansville, N.Y.)
- Pomona Nurseries (Macclenny, Fla.)
- Pomona Nurseries (Palmyra, N.J.)
- Pomona Nurseries.
- Pomona Nursery (Macclenny, Fla.)
- Pomona Ten Cent Nurseries, Inc.
- Pomona United Nurseries.
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- Ponafidine's Nursery.
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- Ponce de Leon, José.
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