APA-ийн эшлэл(7 дахь хэвлэлт)

Watkins, F. M. (1964). The age of ideology-political thought, 1750: To the present. Prentice-Hall.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Watkins, Frederick M. The Age of Ideology-political Thought, 1750: To the Present. Englewood Cliffs, N.J.: Prentice-Hall, 1964.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Watkins, Frederick M. The Age of Ideology-political Thought, 1750: To the Present. Prentice-Hall, 1964.