| 
Citations
 | 
   web
Bailey, A., Williams, N., Palmer, M., & Geering, R. (2000). The farmer as service provider: the demand for agricultural commodities and equine services. Agricultural Systems, 66(3), 191–204.
toggle visibility
Williams, N. (1997). Evolutionary psychologists look for roots of cognition (Vol. 275).
toggle visibility
Walpole, M. J., & Leader-Williams, N. (2002). Tourism and flagship species in conservation. Biodivers Conserv, 11.
toggle visibility