Bostock, L. (1987). ST (P) Mathematics 5B. Stanley Thornes Publication.
Lua i Stíl Chicago (17ú heag.)Bostock, Linda. ST (P) Mathematics 5B. Cheltenham, GB: Stanley Thornes Publication, 1987.
Lua MLA (9ú heag.)Bostock, Linda. ST (P) Mathematics 5B. Stanley Thornes Publication, 1987.
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