Cita APA (7a ed.)

(1997). Strategies for The Prevention of Blindness in National Programmes. W. H.O.

Cita Chicago Style (17a ed.)

Strategies for The Prevention of Blindness in National Programmes. Ginebra: W. H.O, 1997.

Cita MLA (9a ed.)

Strategies for The Prevention of Blindness in National Programmes. W. H.O, 1997.