APA-čujuhus (7. p.)

(1927). Circulation work in public libraries / by Jenie M. Flexner.

Chicago-čujuhus (17. p.)

Circulation Work in Public Libraries / by Jenie M. Flexner. 1927.

MLA-čujuhus (9. p.)

Circulation Work in Public Libraries / by Jenie M. Flexner. 1927.

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