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.
Παραπομπή σε μορφή Chicago (17η εκδ.)The Mathematical Association of Western Australia και 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.
Παραπομπή σε μορφή MLA (9th εκδ.)The Mathematical Association of Western Australia και 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.