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2
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Manual on estimation of selectivity for gillnet and longline gears in abundance surveys / Holger Hovgard, Hans Lassen.
- 639 H846
- Hovgard, Holger.
- FAO,
- 2000.
- Rome :
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Mixed crop-livestock farming : a review of traditional technologies based on literature and field experiences / by Hans Schiere and Loes Kater.
- 630 S332
- Schiere, Hans.
- FAO,
- c 2001
- Rome :