Hassanien , Karim Badr El-Din . The economics of egytian industry within the context of montreal protocol coning the protection of the ozone laye a case study on / [[Thesis] :] Karim Badr El-Din Hassanien . - 1999. - 146 p : ill ; 30 cm. Thesis (M.S ) -- Ain Shams university, 1999. includes bibliogrphic referance (105-109). All age. Dewey Class. No.: 378.23 National Library of Medicine Call No.: 378.23 / HE