Charbonneau,, Manon P. Hidden rods-hidden numbers : simple games of logic / Manon P. Charbonneau

Hidden rods-hidden numbers : simple games of logic / Manon P. Charbonneau . - New York : Cuisenaire Company of America, cop. 1975 . - V, 78 p. 14x22 cm
0-914040-13-8 (Brochado)

51:372.851
372.851:51
371.38