Silberstein, S. D. (1998). Headache in Clinical Practice.
Lua i Stíl Chicago (17ú heag.)Silberstein, Stephen D. Headache in Clinical Practice. 1998.
Lua MLA (9ú heag.)Silberstein, Stephen D. Headache in Clinical Practice. 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.