TY  - BOOK
AU  - Bessey,Charles e.
TI  - The evolution and classification of flowering plants
PY  - 1968///
CY  - New York
PB  - Houghton Mifflin Company
KW  - Taxonomía
KW  - Angiospermae
KW  - Dicotiledoneas
KW  - Monocotiledoneas
KW  - Magnoliphyta
ER  -