Sheep and wool: science, production and management /
by M. P. Botkin, Ray A. Field and C. LeRoy Johnson
- Englewood Cliffs, N. J. : Prentice Hall, 1988
- 451 p. : ilus.
- .
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Ganado lanar--Producción Lana I. Field, Ray A. II. Johnson, C. LeRoy III. t.