Osborn, Roger
Extending mathematics understanding - 1st ed. - Columbus C. E. Merrill Books 1961 - viii, 278 p. ill. 24 cm.
Includes bibliographies
Mathematics
510.7 / OSB/1961
Extending mathematics understanding - 1st ed. - Columbus C. E. Merrill Books 1961 - viii, 278 p. ill. 24 cm.
Includes bibliographies
Mathematics
510.7 / OSB/1961