LLecciones de aritmetica elementalLecciones de aritmetica elementalde George R. PerkinsEdiciones (1)Lecciones de aritmetica elemental (1856)D. Appleton · españolMás obras de George R. PerkinsAge cards and other cards of amusementHHigher arithmetic, designed for the use of high schools, acaHigher arithmetic, designed for the use of high schools, academies, and colleges ; in which some entirely new principles are developed, and many concise and early rules given, which have never before appeared in any arithmetic ; with an appendixAAn Elementary arithmetic, designed for academies and schools
HHigher arithmetic, designed for the use of high schools, acaHigher arithmetic, designed for the use of high schools, academies, and colleges ; in which some entirely new principles are developed, and many concise and early rules given, which have never before appeared in any arithmetic ; with an appendix
