APA citiranje

Sills, D. L. (1957). The volunteers: Means and ends in a national organization. Illinois: Columbia University.

Trích dẫn kiểu Chicago

Sills, David L. The Volunteers: Means and Ends in a National Organization. Illinois: Columbia University, 1957.

MLA citiranje

Sills, David L. The Volunteers: Means and Ends in a National Organization. Illinois: Columbia University, 1957.

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