Gerard, R. W. Central excitation and inhibition: Ralph W. Gerard. Transactions=Protokolle.(2003).
Lua i Stíl Chicago (17ú heag.)Gerard, Ralph W. "Central Excitation and Inhibition: Ralph W. Gerard." Transactions=Protokolle.(2003) .
Lua MLA (8ú heag.)Gerard, Ralph W. "Central Excitation and Inhibition: Ralph W. Gerard." Transactions=Protokolle.(2003), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.