Walter, H., & Muise, O. (1985). Vegetation of the earth and ecological systems of the geo-biosphere (3rd ed., rev. and enl.). Berlin: Springer-Verlag.
Παραπομπή Chicago StyleWalter, Heinrich, and Owen Muise. Vegetation of the Earth and Ecological Systems of the Geo-biosphere. 3rd ed., rev. and enl. Berlin: Springer-Verlag, 1985.
Παραπομπή MLAWalter, Heinrich, and Owen Muise. Vegetation of the Earth and Ecological Systems of the Geo-biosphere. 3rd ed., rev. and enl. Berlin: Springer-Verlag, 1985.
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