(1991). Dissertation abstracts international: C european abstracts. Michigan: University microfilms international.
Citación estilo ChicagoDissertation Abstracts International: C European Abstracts. Michigan: University microfilms international, 1991.
Cita MLADissertation Abstracts International: C European Abstracts. Michigan: University microfilms international, 1991.
Precaución: Estas citas no son 100% exactas.