Concise dictionary of American biography
Charles Scribner's Sons, 1964
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Who was who in America : a component volume of who`s who American history
The A.N. Marquis, 1966
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Sobel, Robert
The Entrepreneur : explorations within the American business tradition
Weybright and Talley, 1974
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Every, Dale Van
A company of heroes : the American frontier 1775-1783 / Dale Van Every
A Mentor Book, 1963
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The American Plutarch: 18 lives selected from the Dictionary of American biography
edited by Edward T. James
Charles Scribner`s Sons, 1964
 Buku Teks SO