APA (7th ed.) Citation

Milne, A. A. (1928). The ivory door: A legend and a prologue and three acts. Putnam's.

Chicago Style (17th ed.) Citation

Milne, A. A. The Ivory Door: A Legend and a Prologue and Three Acts. N.Y.: Putnam's, 1928.

MLA (8th ed.) Citation

Milne, A. A. The Ivory Door: A Legend and a Prologue and Three Acts. Putnam's, 1928.

Warning: These citations may not always be 100% accurate.