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Markevich, A.P. (1934). Les maladies parasitaires des poissons de la Province de Leningrad. [Parasitic diseases of fish in Leningrad Province.]. All-Union Cooperative United Publishing House, Leningrad and Moscow. :3-100.
Markevich, A.P. (1934). Les maladies parasitaires des poissons de la Province de Leningrad. [Parasitic diseases of fish in Leningrad Province.]. All-Union Cooperative United Publishing House, Leningrad and Moscow. :3-100.