Walter Scott (sir, bart [novels, collected]) (1870). Waverley novels. Centenary ed. p. 54. Retrieved 22 February 2013.{{cite book}}: CS1 maint: multiple names: authors list (link)
Erskine-Hill 1981, pp. 141–142. Erskine-Hill, Howard (1981). "Alexander Pope: The Political Poet in His Time". Eighteenth-Century Studies. 15 (2): 123–148. doi:10.2307/2738239. JSTOR2738239.
Robbins 1967, p. 203. Robbins, Caroline (1967). "Absolute Liberty: The Life and Thought of William Popple, 1638-1708". The William and Mary Quarterly. 24 (2): 190–223. doi:10.2307/1920836. JSTOR1920836.
Olson 1961, p. 182. Olson, Alison Gilbert (1961). "William Penn, Parliament and Proprietary Government". The William and Mary Quarterly. 18 (2): 176–195. doi:10.2307/1918542. JSTOR1918542.
Olson 1961, p. 188. Olson, Alison Gilbert (1961). "William Penn, Parliament and Proprietary Government". The William and Mary Quarterly. 18 (2): 176–195. doi:10.2307/1918542. JSTOR1918542.
Erskine-Hill 1981, pp. 141–142. Erskine-Hill, Howard (1981). "Alexander Pope: The Political Poet in His Time". Eighteenth-Century Studies. 15 (2): 123–148. doi:10.2307/2738239. JSTOR2738239.
Robbins 1967, p. 203. Robbins, Caroline (1967). "Absolute Liberty: The Life and Thought of William Popple, 1638-1708". The William and Mary Quarterly. 24 (2): 190–223. doi:10.2307/1920836. JSTOR1920836.
Olson 1961, p. 182. Olson, Alison Gilbert (1961). "William Penn, Parliament and Proprietary Government". The William and Mary Quarterly. 18 (2): 176–195. doi:10.2307/1918542. JSTOR1918542.
Olson 1961, p. 188. Olson, Alison Gilbert (1961). "William Penn, Parliament and Proprietary Government". The William and Mary Quarterly. 18 (2): 176–195. doi:10.2307/1918542. JSTOR1918542.