Walters, M., & Hamilton, A. C. 1. (1993). The vital wealth of plants: WWF and the conservation of plants. Great Britain: World Wide Fund for Nature.
Citación estilo ChicagoWalters, Martin, y Alan Charles 1945- Hamilton. The Vital Wealth of Plants: WWF and the Conservation of Plants. Great Britain: World Wide Fund for Nature, 1993.
Cita MLAWalters, Martin, y Alan Charles 1945- Hamilton. The Vital Wealth of Plants: WWF and the Conservation of Plants. Great Britain: World Wide Fund for Nature, 1993.
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