Heal, O. W., & Perkins, D. F. (1978). Production ecology of British moors and montane grasslands. Springer-Verlag.
シカゴスタイル引用形Heal, O W., , D F. Perkins. Production Ecology of British Moors and Montane Grasslands. Berlin: Springer-Verlag, 1978.
MLA引用形式Heal, O W., , D F. Perkins. Production Ecology of British Moors and Montane Grasslands. Springer-Verlag, 1978.
警告: この引用は必ずしも正確ではありません.