Sorokin, Y. I. Techniques for the assessment of microbial production and decomposition in fresh waters - London : Blackwell, 1972 - 112 p. : ilus. - IBP Handbook ; 23 . - IBP Handbook ; 23 . LCCN: 57421 Subjects--Topical Terms: Agua--Bacteriologia. Dewey Class. No.: 628.16 / S6