Scottish Mathematics Group. (1968). Modern mathematics for schools, book 7. Chambers.
Dyfyniad Arddull ChicagoScottish Mathematics Group. Modern Mathematics for Schools, Book 7. Glasgow : Blackie ; Edinburgh: Chambers, 1968.
Dyfyniad MLAScottish Mathematics Group. Modern Mathematics for Schools, Book 7. Chambers, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.