APA-ийн эшлэл(7 дахь хэвлэлт)
Felber, R. (2011). Presidential lessons in leadership: What executives (and everybody else) can learn from six great American presidents. Hamilton Books.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Felber, Ron. Presidential Lessons in Leadership: What Executives (and Everybody Else) Can Learn from Six Great American Presidents. Lanham, MD: Hamilton Books, 2011.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Felber, Ron. Presidential Lessons in Leadership: What Executives (and Everybody Else) Can Learn from Six Great American Presidents. Hamilton Books, 2011.
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