Yepsen Jr, R. (1987). How to boost your brain power. Universal.
Lua i Stíl Chicago (17ú heag.)Yepsen Jr, Roger. How to Boost Your Brain Power. New Delhi: Universal, 1987.
Lua MLA (9ú heag.)Yepsen Jr, Roger. How to Boost Your Brain Power. Universal, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.