Cita APA (7a ed.)

(1978). Bibliography: Citations Obtained Through the National Library of Medicine's MEDLARS Program.

Cita Chicago Style (17a ed.)

Bibliography: Citations Obtained Through the National Library of Medicine's MEDLARS Program. 1978.

Cita MLA (9a ed.)

Bibliography: Citations Obtained Through the National Library of Medicine's MEDLARS Program. 1978.

Precaución: Estas citas no son 100% exactas.