APA-ийн эшлэл(7 дахь хэвлэлт)

National Council of Teachers of Mathematics. (1926). Yearbook. National Council of Teachers of Mathematics.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

National Council of Teachers of Mathematics. Yearbook. [Place of publication not identified]: National Council of Teachers of Mathematics, 1926.

MLA -ийн эшлэл (9 дэх хэвлэлт)

National Council of Teachers of Mathematics. Yearbook. National Council of Teachers of Mathematics, 1926.