Как упорядочить свой внутренний мир

Lettie B. Cowman, Charles E. Cowman (Los Angeles: Oriental Society, 1928), p. 175.

William Barclay, The Letters to the Galatians and Ephesians (Philadelphia: Westminster, 1976), p. 100.

Anna Morrow Lindberg, The Gift from the Sea (New York: Pantheon, 1955), pp. 23–24.

Dorothie Bobbe, Abigail Adams (New York: Puthnam, 1966), p. 206.

«Executive’s Crisis», Wall Street Journal, 12 March 1982, p. 1.