Citazione Stile APA (7a Edizione)
Trowbridge, R. L. (1980). Champions of Freedom the Ludwig von Mises Lecture Series: M. Stanton Evans, Thomas Sowell, Arthur Shenfield, Christian Watrin, Walter E.Williams (1. ed.). College Press.
Citazione stile Chigago Style (17a edizione)
Trowbridge, Ronald L. Champions of Freedom the Ludwig Von Mises Lecture Series: M. Stanton Evans, Thomas Sowell, Arthur Shenfield, Christian Watrin, Walter E.Williams. 1. ed. Hillsdale: College Press, 1980.
Citatione MLA (9a ed.)
Trowbridge, Ronald L. Champions of Freedom the Ludwig Von Mises Lecture Series: M. Stanton Evans, Thomas Sowell, Arthur Shenfield, Christian Watrin, Walter E.Williams. 1. ed. College Press, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.