Economische problemen
type: Concept
main entity of page: http://data.bibliotheken.nl/doc/thes/p078492580
main entity of page: https://koninklijkebibliotheek.triply.cc/.well-known/genid/0fce1b2b8688bffc94026c458d221469
in scheme: gtt
preferred label: Economical problems @en