Hubbard, C. E. (1968). Grasses. A guide to their structure, identification, uses, and distribution in the British Isles. 2nd Revised edition. Penguin Books: Middlesex, England. 463 pp.
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Hubbard, C. E.
1968
Grasses. A guide to their structure, identification, uses, and distribution in the British Isles
2nd Revised edition. Penguin Books: Middlesex, England