Letters to the Editors
| Autor: | Glaser, Peter E., Blum, Harold A., Vogel, John C., Welch, Bruce L., Lockeretz, William, Chandler, Charles H., Smith, Kimberly, Graybeal, F. T. |
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| Zdroj: | American Scientist, 1976 Nov 01. 64(6), 606-613. |
| Databáze: | JSTOR Journals |
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