| Title: | The Philosophy of Spiritual Activity |
| Author: | Rudolf Steiner Introduction by Hugo S. Bergman, Ph.D., edited, and with Notes by Paul M. Allen. |
| Publisher: | Rudolf Steiner Publications, Inc. |
| Translation: | Translated from the German by Rita Stebbing |
| Year Publ: | 1963 |
| ISBN/LCN: | LCN 62-22389 |
| Pages: | 411 |
| Type: | Hardcover |
| Size: | 5 1/2 x 8 1/2 inches |
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