Heal, O. W., & Perkins, D. F. (1978). Production ecology of British moors and montane grasslands. Springer-Verlag.
Chicago Edition CitationHeal, O W., and D F. Perkins. Production Ecology of British Moors and Montane Grasslands. Berlin: Springer-Verlag, 1978.
Deismireacht MLAHeal, O W., and D F. Perkins. Production Ecology of British Moors and Montane Grasslands. Springer-Verlag, 1978.
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