.245
a	Teaching arithmetic to children
h	Book
.100
a	SWNSON, Eshter J.
.005
a	20080124081530
.260
a	New York
b	Macmillan
c	1964
.084
a	51307 SWE
.300
a	x, 482 hlm.: gamb.,tab.
b	25 cm.
c	x, 482 hlm.: gamb.,tab.; 25 cm.
.336
a	Book