1. Baum, A., Mackmin, D. and Nunnington, N. (2011) The Income Approach to Property Valuation, 6th edn (Oxford: EG Books).
2. Davidson, A. (2013) Parry’s Valuation and Investment Tables, 13th edn (London: Estates Gazette).
3. RICS (2012) RICS Valuation — Professional Standards (Coventry: Royal Institution of Chartered Surveyors).