TY - BOOK AU - Elliott,J.M. TI - Some methods for the statistical analysis of samples of benthic invertebrates, SN - 0900386290 U1 - 592.0526320 22 PY - 1971/// CY - [Ambleside, Eng.] PB - Freshwater Biological Association KW - Invertebrate populations KW - Statistical methods KW - Sampling (Statistics) N1 - Bibliography: p. 139-142 ER -