| Level | Item |
| Ref No | L/E/6/91 |
| Alt Ref No | E(L)/6/91 |
| Title | Choreology (Effort) \ Report by Raadgevend Efficiency Board |
| Date | 1952 |
| Extent | 10 sheets, 1 bound volume |
| Description | Report by P. H. Bosboom and F. C. M. Hegener on the first examination into the value and the possibilities of application of Rudolf Laban's Effort Diagnosis. |
| Language | English |
| Format | Papers |