Dyfyniad APA

Coffey, J. I. R. p. (1961). The presidential staff. National planning association.

Dyfyniad Arddull Chicago

Coffey, Joseph I Rock,Vincent p. The Presidential Staff. Washington D C: National planning association, 1961.

Dyfyniad MLA

Coffey, Joseph I Rock,Vincent p. The Presidential Staff. National planning association, 1961.

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