Parker, D. H. (1969). SRA reading laboratory (Revised edition.). Science Research Associates.
Lua i Stíl Chicago (17ú heag.)Parker, Don H. SRA Reading Laboratory. Revised edition. Chicago: Science Research Associates, 1969.
Lua MLA (8ú heag.)Parker, Don H. SRA Reading Laboratory. Revised edition. Science Research Associates, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.