Loehr, R. C., Martin, C. S., & Rast, W. (1980). Phosphorus Management Strategies for lakes: Proceedings of the 1979 Conference sponsored by.. Ann Arbor Science.
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Chicago-čujuhus (17. p.)
Loehr, Raymond Charles, Colleen S. Martin, juo Walter Rast. Phosphorus Management Strategies for Lakes: Proceedings of the 1979 Conference Sponsored by.. Ann Arbor/ Mich: Ann Arbor Science, 1980.
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MLA-čujuhus (9. p.)
Loehr, Raymond Charles, et al. Phosphorus Management Strategies for Lakes: Proceedings of the 1979 Conference Sponsored by.. Ann Arbor Science, 1980.
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