Cita APA (7a ed.)

Guyatt, G. (2008). Users' guides to the medical literature: A manual for evidence-based clinical practice (2nd ed.). McGraw Hill Medical.

Cita Chicago Style (17a ed.)

Guyatt, Gordon. Users' Guides to the Medical Literature: A Manual for Evidence-based Clinical Practice. 2nd ed. New York: McGraw Hill Medical, 2008.

Cita MLA (9a ed.)

Guyatt, Gordon. Users' Guides to the Medical Literature: A Manual for Evidence-based Clinical Practice. 2nd ed. McGraw Hill Medical, 2008.