From Citizendium, the Citizens' Compendium
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- Holst, Imogen (1986-03-20). The Music of Gustav Holst, and Holst's Music Reconsidered, 3rd Revised edition. Oxford Univ Pr. ISBN 0193154587. Written by Holst's daughter, long considered the definitive biography.
- Short, Michael (1990-11-08). Gustav Holst. Oxford University Press. ISBN 9780193141544. "Containing new information which has become available since Imogen Holst published a biography of her father fifty years ago, this book includes an analysis of Holst's musical style and a substantial reference section." -publisher's description.