77/ 97 Appel, A. General catalogue. Amst., the author, 2016, no pagination, richly illustrated, orig. limp boards w. sl. transparent dustwr. Morellet, F. Abhandlung über die Methode. Mainz, Chorus, 1997, 87,(1)p., num. (col.) ills., orig. wr., 4to. - AND 2 others on P. STRUYCKEN and L. FONTANA.

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