Wells, D. (1988). Mathematics through problem solving ; problem book 2 /David Wells. Basil Blackwood.
Citace podle Chicago (17th ed.)Wells, David. Mathematics Through Problem Solving ; Problem Book 2 /David Wells. England: Basil Blackwood, 1988.
Citace podle MLA (9th ed.)Wells, David. Mathematics Through Problem Solving ; Problem Book 2 /David Wells. Basil Blackwood, 1988.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..