APA (7th ed.) Zitazioa

Etter Jean-François. (2010). Electronic cigarettes: A survey of users. BMC.

Chicago Style (17th ed.) Zitazioa

Etter Jean-François. Electronic Cigarettes: A Survey of Users. BMC, 2010.

MLA (9th ed.) Zitazioa

Etter Jean-François. Electronic Cigarettes: A Survey of Users. BMC, 2010.