00434nam a2200169Ia 4500 170901s1968 xx 000 0 und d 0226505057 574.5 M32P Margalef, Ramon Perspectives in Ecological Theory Chicago The University of Chicago Press 1968 111 Life sciences Pure Sciences Ecology ddc BK 6692 6692 0 0 ddc 0 0 RAU RAU 2017-10-18 0 574.5 M32P 11302 2017-10-18 2017-10-18 BK