Mann, A., & Brunstrom, C. (1969). Aspects of educational technology vol.lll. Sir Isaac Pitman And Sons Limited.
Lua i Stíl Chicago (17ú heag.)Mann, A.P, agus C.K Brunstrom. Aspects of Educational Technology Vol.lll. London: Sir Isaac Pitman And Sons Limited, 1969.
Lua MLA (9ú heag.)Mann, A.P, agus C.K Brunstrom. Aspects of Educational Technology Vol.lll. Sir Isaac Pitman And Sons Limited, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.