Estudio demográfico y sociológico sobre el área metropolitana de San Salvador = A demographic and socio-economic survey of the metropolitan area of San Salvador, El Salvador

- Author: Ducoff, Louis J.
- Publication corporate author (Institutional author): NU. CEPAL. CCE
- Physical description: páginas. irreg.
- Publisher: CEPAL
- UN symbol (Signature): E/CN.12/CCE/233
- Date: 13 September 1961