TY  - BOOK
AU  - Phipps, J. B.
TI  - Biogeographic, taxonomic, and cladistic relationship between east asiatic and north american crataegus
KW  - Fitogeografía
KW  - Tejocote
KW  - Clasificación
N1  - Sobretiro de: Ann Missouri Bot. Gard. 70 : 667-700, 1983
ER  -