Percy, Carol. 2001. “The 
					social symbolism of contractions and colloquialisms in 
					contemporary accounts of Dr. Samuel Johnson:
					
					
					Bozzy, Piozzi, and the authority of intimacy”. 
					Historical Sociolinguistics and Soiciohistorial Linguistics. 
					(http://www.let.leidenuniv.nl/hsl_shl 
					-> Contents -> Articles). (provide your date of logon; 
					sample:
					13-03-07.)