Greer, A. (1981). Revision practice in new mathematics. Cheltenham, Glos : Stanley Thornes.
Chicago-čujuhus (17. p.)Greer, A. Revision Practice in New Mathematics. Cheltenham, Glos : Stanley Thornes, 1981.
MLA-čujuhus (9. p.)Greer, A. Revision Practice in New Mathematics. Cheltenham, Glos : Stanley Thornes, 1981.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.