School Mathematics Study Group. (1961). Mathematics for junior high school: Student's text (rev. ed.). Yale University Press.
Lua i Stíl Chicago (17ú heag.)School Mathematics Study Group. Mathematics for Junior High School: Student's Text. rev. ed. New Haven: Yale University Press, 1961.
Lua MLA (9ú heag.)School Mathematics Study Group. Mathematics for Junior High School: Student's Text. rev. ed. Yale University Press, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.