3 résultats

Visualiser le document
Monographie
Rare plants of New York State
Mitchell Richard Sheppard, Sheviak Charles J. | New York State Museum, University of the State of New York, State Education Dept. | 1981
Visualiser le document
Monographie
Polygonaceae (Buckwheat Family) of New York State
Mitchell Richard Sheppard | The University of the State of New York, State Education Dept. | [1978]
Visualiser le document
Monographie
Magnoliaceae through Ceratophyllaceae of New York State
Mitchell Richard Sheppard | The University of the State of New York, State Education Dept. | 1979