RT Web Page DB /z-wcorg/ DS http://worldcat.org ID 60640259 LA English UL http://books.google.com/books?id=LGUVAAAAIAAJ T1 The mathematics teacher. A1 Association of Teachers of Mathematics in the Middle States and Maryland,, National Council of Teachers of Mathematics,, PB Association of Teachers of Mathematics in the Middle States and Maryland PP [Lancaster, Pa.] YR 1908 SN 2330-0582