Syllabus for chrysanthemum diseases (Diapositiva) - (s.l.) : American Phytophatological Society, 1972 - 38 diapositivas col. 2 x 2 plg. - Disease of plants ; 17 . - Disease of plants ; 17 .

Nota explicativa 3 p. Tambien en CD 4 3/4 plgs.

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Crisantemo--Enfermedades.