Catherine Helen Spence, Susan Magarey, Maryan Beams (2005). “Ever Yours, C.H. Spence: Catherine Helen Spence's An Autobiography (1825-1910), Diary (1894) and Some Correspondence (1894-1910)”, p.23, Wakefield Press
James Boswell, Samuel Johnson (1799). “Life of Johnson: Including Boswell's Journal of a Tour to the Hebrides and Johnson's Diary of a Journey Into North Wales”, p.363
Greg Mortenson, David Oliver Relin (2009). “Three Cups of Tea: Young Readers Edition: One Man's Journey to Change the World... One Child at a Time”, p.79, Penguin