Stone, M. F. (1963). A calling and its college ; a history of the American College of Life Underwriters. Irwin.
Citace podle Chicago (17th ed.)Stone, Mildred F. A Calling and Its College ; a History of the American College of Life Underwriters. Homewood, Ill: Irwin, 1963.
Citace podle MLA (9th ed.)Stone, Mildred F. A Calling and Its College ; a History of the American College of Life Underwriters. Irwin, 1963.
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