Estudio demografico de Echeveria gibbiflora DC (Crasulaceae) en el Pedregal de San Angel
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| Format: | Tesis de licenciatura |
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México
1992
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| Online Access: | https://hdl.handle.net/20.500.14330/TES01000184007 https://tesiunamdocumentos.dgb.unam.mx/ptd2013/anteriores/0184007/Index.html |