I have a painting entitled " encampment ", how do I determine it's value...

Does it look like this?
Gypsy Encampment Painting by John Atkinson - Gypsy Encampment Fine Art Prints and Posters for Sale (http://fineartamerica.com/featured/gypsy-encampment-john-atkinson.html)

No, the title is just " Encampment "...

Hmmm. I am having a difficult time finding a painting by him with that name... can you post a picture?