Wåhlin, E. (1978). Research on classification systems: Summarizing report on research on classification systems and their application. Swedish Council for Building Research.
Cytowanie według stylu Chicago (wyd. 17)Wåhlin, Ejnar. Research on Classification Systems: Summarizing Report on Research on Classification Systems and Their Application. Stockholm: Swedish Council for Building Research, 1978.
Cytowanie według stylu MLA (wyd. 8)Wåhlin, Ejnar. Research on Classification Systems: Summarizing Report on Research on Classification Systems and Their Application. Swedish Council for Building Research, 1978.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..