Title: Problemi na urbanizatsiiata i selishtnata mrezha : materiali na Simpoziuma, sustoial se na 15-18 mai 1973 g. v gr. Plovdiv i gr. Smolian /
Authors: Bradistilov, Dobri.; Suiuz na ikonomistite v Bulgariia.; Sŭi︠u︡z na nauchnite rabotnit︠s︡i v Bŭlgarii︠a︡.
Publisher: Suiuz na ikonomistite v Bulgariia,
Year: 1974