The healing forest : medicinal and toxic plants of Northwest Amazonia 1990 Schultes, Richard Evan | Raffauf, Robert F. |
Stan zagrozenia oraz warunki zabezpieczenia naturalnych zasobów róslin leczniczych 1984 Gawlowska, Jadwiga |
High mountain treeless zone of the Central Balkan National Park : biological diversity and problems of its conservation 2000 Popov, Alexi | Meshinev, Tenyo |
Medicinal resources of the tropical forest : biodiversity and its importance to human health 1996 Balick, Michael J. | Elisabetsky, Elaine | Laird, Sarah A. |
Intellectual property rights and biodiversity conservation : an interdisciplinary analysis of the values of medicinal plants 1995 Swanson, Timothy M. |