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Lantz Institutionum arithmeticarum libri quatuor . Book Lantz Johann Institutionum arithmeticarum libri quatuor apud Nicolaum Henricum Monachii lat it Institutionum arithmeticarum libri quatuor In quibus regulis et exemplis practicis breuissime et calrissime explicantur Cum appendice fractionum astronomicarum Et indice capitum