Campbell, R. M. (1971). Studies on the distribution and productivity of submerged fresh-water macrophytes.
Cita Chicago Style (17a ed.)Campbell, Robert M. Studies on the Distribution and Productivity of Submerged Fresh-water Macrophytes. 1971.
Cita MLA (8a ed.)Campbell, Robert M. Studies on the Distribution and Productivity of Submerged Fresh-water Macrophytes. 1971.
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