(2010). Hospital waste management. Alfa.
Chicago Style aipamenaHospital Waste Management. New Delhi: Alfa, 2010.
MLA aipamenaHospital Waste Management. Alfa, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
(2010). Hospital waste management. Alfa.
Chicago Style aipamenaHospital Waste Management. New Delhi: Alfa, 2010.
MLA aipamenaHospital Waste Management. Alfa, 2010.