@book{486753,
	author = {FRANK  SMITH and A. S. HARRISON},
	title = {PRINCIPLES  OF  CLASS  TEACHING},
	publisher = {THE  ENGLISH  LANGUAGE  BOOK  SOCIETY  AND  MACMILLAN   &   CO  LTD},
	year = {1937},
	address = {LONDON},
	edition = {1 st}
}