Editore: Botaniska Notiser
Da: Terrace Horticultural Books, St. Paul, MN, U.S.A.
Paperback. Condizione: Very Good. B & W Illustration, Line Drawings (illustratore). Copyright Date: 1951 Octavo, , PP.320-330, Sartryck Ur Botaniska Notiser 1951, Harte 4. Lund.