WEEDA, E.J., (a.o.). Nederlandse oecologische flora. Wilde planten en hun relaties. 2003. 6 vols. incl. register. W. many photographs & illustr. in the text. 4°. Ocl. w. dust-j. In or. slipcase. (Name entry in first vol., spines discold., otherwise a clean, neat, very well-preserved set, includes an empty binder for notes). -- NIEUWE ATLAS VAN DE NEDERLANDSE FLORA. 2011. W. many cold. maps. 4°. Ocl. w. dust-j. -- (7).