OECD. (1961). Synopses for modern secondary school mathematics. Organization for Economic Co-Operation and Development.
Chicago-čujuhus (17. p.)OECD. Synopses for Modern Secondary School Mathematics. París: Organization for Economic Co-Operation and Development, 1961.
MLA-čujuhus (9. p.)OECD. Synopses for Modern Secondary School Mathematics. Organization for Economic Co-Operation and Development, 1961.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.