| Level | Item |
| Ref No | L/E/5/52 |
| Alt Ref No | E(L)/5/52 |
| Title | Choreology (Effort) \ Flow of movement |
| Date | n.d. |
| Extent | 11 sheets |
| Description | Handwritten manuscript by Rudolf Laban relating to the influence of the fourth factor on effort actions (drives). |
| Language | English |
| Physical Description | Original reference number was 6/I/4. Pages numbered 1-11. |
| Format | Papers |