The Mathematical Association of Western Australia & Title : One hundred mathematical problems for students aged 11 to 13 years. 100 mathematical problems for students aged 11 to 13 years. Mathematical Association of Western Australia, c1980.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)The Mathematical Association of Western Australia và Title : One hundred mathematical problems for students aged 11 to 13 years. 100 Mathematical Problems for Students Aged 11 to 13 Years. [s.l.]: Mathematical Association of Western Australia, c1980.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)The Mathematical Association of Western Australia và Title : One hundred mathematical problems for students aged 11 to 13 years. 100 Mathematical Problems for Students Aged 11 to 13 Years. Mathematical Association of Western Australia, c1980.