Fletcher, H., & Howell, A. (1973). Mathematics for schools Level II: An integrated. Addison-Wesley.
Dyfyniad Arddull ChicagoFletcher, Harold, and Arnold Howell. Mathematics for Schools Level II: An Integrated. Addison-Wesley, 1973.
Dyfyniad MLAFletcher, Harold, and Arnold Howell. Mathematics for Schools Level II: An Integrated. Addison-Wesley, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.