Ellis, S. J., & Noyes, K. H. (1990). By the people: A history of Americans as volunteers (Rev.ed.). Jossey-Bass.
Citace podle Chicago (17th ed.)Ellis, Susan J., a Katherine H. Noyes. By the People: A History of Americans as Volunteers. Rev.ed. San Francisco: Jossey-Bass, 1990.
Citace podle MLA (9th ed.)Ellis, Susan J., a Katherine H. Noyes. By the People: A History of Americans as Volunteers. Rev.ed. Jossey-Bass, 1990.
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