Lazell, H. G. (1975). From pills to penicillin: The Beecham story : a personal account. Heinemann.
Lua i Stíl Chicago (17ú heag.)Lazell, H. G. From Pills to Penicillin: The Beecham Story : A Personal Account. London: Heinemann, 1975.
Lua MLA (8ú heag.)Lazell, H. G. From Pills to Penicillin: The Beecham Story : A Personal Account. Heinemann, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.