00427nam a2200145Ia 4500008004100000040000900041082001500050100007800065100001600143245005000159260003300209300001500242650001200257654001200269211211s9999||||xx |||||||||||||| ||und|| cAKCL a577bMIS-E aD.N. Rao, R.S. Ambasht, K.L. Mukherjee, R.S.Dwivedi, P.V. Ananthakrishnan aMisra, K.C. 0aEcology Study of Ecosystems c/ by K.C. Misra aDelhi :bA.H. Wheeler,c1970 aIX, 301 p. aBiology aEcology