Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.