"friel, betty k. "
fractions:: a basic course in arithmetic/ betty.k. friel - 1 ed. - uk : macdonald 1965. - "ix, 394p.; 22 cm."
hard cover
QA117 / .F7 1965
fractions:: a basic course in arithmetic/ betty.k. friel - 1 ed. - uk : macdonald 1965. - "ix, 394p.; 22 cm."
hard cover
QA117 / .F7 1965