found: Radicati di Primeglio, C. Antonio Ricardo Pedemontanus, 1985?:prelim. p. 1, etc. (Italian printer born in Turin, 1540?; initiated printing in Lima, Peru; d. 1606)
found: Institutiones grammaticae Latino carmine, 1595t.p. (Limae : Apud Antonium Ricardum Taurinensem)
found: Enciclopedia universal ilustrada europea-americana, supl. anual, 1965-66:p. 181 (under Bibliologia; Antonio Ricardos)
found: Enciclopedia italiana, 1929-39:v. 33, p. 903 (under Tipografia; Antonio Ricardo) v. 21, p. 151 (under Lima, Peru; tipografo piemontese Antonio Ricardo; first press in Lima, 1576)
found: Medina, J.T. La imprenta en Lima (1584-1824), 1904-1907:v. 1, p. [xix]ff. (Antonio Ricardo, the first printer in Lima; Italian, native of Turin; first active in Mexico City, where he arrived in the beginning of the 1570s; operated a workshop there from ca. 1577; moved to Lima, 1580) p. xxxiii (last known publication dated Mar. 1605; buried in the church of Santo Domingo (Lima), Apr. 19, 1606)
found: WBIS, Feb. 8, 2012(Ricardo, Antonio, male, b. 1532, printer, emigrant in Peru; Ricardo, Antonio, male, d. 1606, printer in Mexico and Peru)
found: Bonfiglio, G. Diz. storico-biografico degli italiani in Perù, c1998(Ricardo, Antonio, printer, b. Turin, 1532; left Turin ca. 1565; departed for America, 1569; est. press in Mexico, 1578; arrived in Peru at beginning of 1580s; licenced as printer in Lima by the Audiencia, Feb. 13, 1584; published in Spanish, except for the Institutiones grammaticae, in Latin; presumably d. in Lima, date unknown)
