Southwood, T.R.E. Ecological methods : with particular reference to the study of insect populations / T.R.E. Southwood. - London. Chapman and Hall. 1966 - xxiv, 524p. : ill. ; hbk ISBN: 0412307103 Subjects--Topical Terms: Ecology -- Technique .Animal populations. LC Class. No.: QH541.S6 1966