Source: The circuit flow of money, 1922, p. 460; Early descriptions of the circular flow of income
William Trufant Foster: Citations en anglais
Source: Argumentation and debating, 1908, p. 24 ; as cited in: Branham (2013, p. 38)
Source: Argumentation and debating, 1908, p. viii
Source: Argumentation and debating, 1908, p. viii
Source: The circuit flow of money, 1922, p. 264
Source: Argumentation and debating, 1908, p. 27; partly cited in: Branham (2013, p. 39)
Source: Argumentation and debating, 1908, p. 281
Foster and Catchings, in: The Atlantic Monthly, Vol. 144, (1929), p. 102; cited in: William J. Barber. From New Era to New Deal. 1988, p. 77.
Source: Argumentation and debating, 1908, p. 59; as cited in: Branham (2013, p. 77)
Source: Argumentation and debating, 1908, p. 2; as cited in: Robert James Branham (2013). Debate and Critical Analysis: The Harmony of Conflict. p. 31
Source: Argumentation and debating, 1908, p. 4-5; as cited in: Branham (2013, p. 32-33)
Source: Argumentation and debating, 1908, p. 59; as cited in: Branham (2013, p. 77)
Source: The circuit flow of money, 1922, p. 262