Summulae logicales. / By Petrus Hispanus. -- Zwolle, J. de Vollenhoe, 1479. -- 24.5 sheets ; 4° ISTC IJ00229100; L. and W. Hellinga, ‘Additions and notes to Campbell’s Annales and GW’. Beiträge zur Inkunabelkunde, Dritte Folge 1 (1965), pp.76-86, 1399. -- Signature Formula: a-l⁸ m¹⁰ (a1, m9 and m10 blank). -- Fingerprint: 147904 - . -- Derived from ISTC [STCN ID: 107925230]