Robertson, M., & Millen, J. (1949). Le beau Danube and Le tricorne (The three-cornered hat): The stories of the ballets (2nd ed.). Adam & Charles Black.
Chicago Style (17th ed.) CitationRobertson, Marion, and Joyce Millen. Le Beau Danube and Le Tricorne (The Three-cornered Hat): The Stories of the Ballets. 2nd ed. London: Adam & Charles Black, 1949.
MLA (8th ed.) CitationRobertson, Marion, and Joyce Millen. Le Beau Danube and Le Tricorne (The Three-cornered Hat): The Stories of the Ballets. 2nd ed. Adam & Charles Black, 1949.
Warning: These citations may not always be 100% accurate.