Παραπομπή APA

Erickson, E. W. (1961). College and university library surveys 1938-1952. Chicago: American Library Association.

Παραπομπή Chicago Style

Erickson, E. Walfred. College and University Library Surveys 1938-1952. Chicago: American Library Association, 1961.

Παραπομπή MLA

Erickson, E. Walfred. College and University Library Surveys 1938-1952. Chicago: American Library Association, 1961.

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