TY  - BOOK
AU  - Babcock, Ernest Brown.
TI  - The genus crepis
U1  - 583.552 
PY  - 1947///
CY  - Berkeley
PB  - University of California
KW  - Crepis
KW  - Herencia
N1  - Contenido: v.1 The taxonomy, phylogeny, distribution, and evolution of crepis. v.2 Systematic treatment
ER  -