APA (7th ed.) Zitazioa
Lippincott Williams & Wilkins. (2011). Professional guide to signs & symptoms (Sixth edition.). Wolters Kluwer/Lippincott Williams & Wilkins.
Chicago Style (17th ed.) Zitazioa
Lippincott Williams & Wilkins. Professional Guide to Signs & Symptoms. Sixth edition. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins, 2011.
MLA (9th ed.) Zitazioa
Lippincott Williams & Wilkins. Professional Guide to Signs & Symptoms. Sixth edition. Wolters Kluwer/Lippincott Williams & Wilkins, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.