Arkansas. Dept. of Education. (1966). Science guidelines for the secondary schools of Arkansas.
Lua i Stíl Chicago (17ú heag.)Arkansas. Dept. of Education. Science Guidelines for the Secondary Schools of Arkansas. Little Rock, 1966.
Lua MLA (8ú heag.)Arkansas. Dept. of Education. Science Guidelines for the Secondary Schools of Arkansas. 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.