The identification of flowering plant families, including a key to those native and cultivated in north temperate regions :

di Davis, P.H.
Pubblicazione 1979

The identification of flowering plant families includings key to those native and cultivated in north temperate regions

di Davis
Pubblicazione 1989

The identification of flowering plant families, including a key to those native and cultivated in north temperate regions

di Davis
Pubblicazione 1979