Singh, V. Periodicity of the blue-green algae and their effect on the efficiency of manure-disposal lagoons. Washington: U.s. Gov. Print. Office, 1972 8 p. : ill.
Singh, V. Periodicity of the blue-green algae and their effect on the efficiency of manure-disposal lagoons. Washington: U.s. Gov. Print. Office, 1972 8 p. : ill.
Singh, V. (1972) Periodicity of the blue-green algae and their effect on the efficiency of manure-disposal lagoons, Washington: U.s. Gov. Print. Office 8 p. : ill.
Singh, V. (1972). Periodicity of the blue-green algae and their effect on the efficiency of manure-disposal lagoons. Washington: U.s. Gov. Print. Office, 8 p. : ill.
Singh V. Periodicity of the blue-green algae and their effect on the efficiency of manure-disposal lagoons. Washington: U.s. Gov. Print. Office; 1972. p. 8 p. : ill.
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