Sources of art nouveau /
Stephan Tschudi Madsen ; (translated by Ragnar Christophersen).
- New York : Da Capo Press, 1976, c1975.
- 488 p : ill. ; 26 cm.
- A Da Capo paperback .
Facsimile reprint of ed. originally published, Oslo, H. Aschehoug, 1956; with new preface added.