Hardy, W. (1986). A guide to art nouveau style. Chartwell Books.
Chicago Style (17th ed.) CitationHardy, William. A Guide to Art Nouveau Style. Secaucus, N.J.: Chartwell Books, 1986.
MLA (9th ed.) CitationHardy, William. A Guide to Art Nouveau Style. Chartwell Books, 1986.
Warning: These citations may not always be 100% accurate.