N=P P=12937 CPBP ref=CPBP Cicero Opera philosophica Filosofia yPOR Conimbricae Tip. Academica 1812 y18 y181 BPP bib=BPP CICERO OPERA PHILOSOPHICA FILOSOFIA CONIMBRICAE TIP. ACADEMICA FILOSóFICA TIPOGRAFIA Coimbra anyPortugal anyEuropa anyIbéria