Science and mathematics of toys :
Science and mathematics of toys : sourcebook for teachers.
- Philippines : University of the Philippines, c2000.
- 125 p. ; 23 cm.
971-570-082-9
Science--Study and teaching--Aids and devices.
Prof. 507 S416 2000
971-570-082-9
Science--Study and teaching--Aids and devices.
Prof. 507 S416 2000
