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| 55 | | Boul | Boulton, Andrew.
Healthy rivers: understanding for management [Текст] : An inaugural public lecture delivered at the Armidale Town Hall, New South Wales on 30 June 2005 / Andrew J. Boulton. — Armidale : The University of New England, 2005. — 28 p. | |
| | ISBN 1-86389-958-8 | |
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