According to Asquith (2010)...
OR
...as it had been identified (Asquith, 2010).
Surname, Initial. (Ed.). (Year). Title of dictionary. Publisher
Asquith, G. H. (Ed.). (2010). The concise dictionary of pastoral care and counselling. Abingdon Press.
According to Cully and Cully (1990)...
OR
...as it had been identified (Cully & Cully, 1990).
Surname, Initial. (Ed.). (Year). Title of encyclopaedia. Publisher
Cully, I.V. & Cully, K.B. (Eds.). (1990). Harper's encyclopedia of religious education. Harper & Row.
According to Siegel (2003)...
OR
...as it had been identified (Siegel, 2003).
Surname, Initial. (Year). Title of entry. In Initial. Surname. (Ed.), Title of encyclopaedia. Publisher
Siegel, H. (2003). Philosophy of education. In Encyclopaedia Britannia. Encyclopaedia Britannia.
According to “Empathy” (1999)...
OR
...as it had been identified (“Empathy,” 1999).
Title of entry. (Year). In Initial. Surname. (Ed.), Title of encyclopaedia. Publisher
Empathy (1999). In D.G. Benner & P. Hill, Peter (Eds), Baker encyclopedia of psychology and counselling (2nd ed.). Baker Book House.
According to “Differentiation” (2014)...
OR
...as it had been identified (“Differentiation,” 2014).
Surname, Initial. (Year). Title of entry. In Initial. Surname. (Ed.), Title of dictionary/encyclopaedia. Url of website
OR
Title of entry. (Year). In Initial. Surname. (Ed.), Title of dictionary/encyclopaedia. Url of website
Differentiation (2014). In S. Wallace. (Ed.), A Dictionary of education. http://www.oxfordreference.com/view/10.1093/acref/9780199212064.001.0001/acref-9780199212064-e-274?rskey=QbomB8&result=279