APA (7th ed.) Citation

Des Moines. Public Library. (1957). Policies for the selection of books and related library materials. The Library.

Chicago Style (17th ed.) Citation

Des Moines. Public Library. Policies for the Selection of Books and Related Library Materials. Des Moines, Iowa: The Library, 1957.

MLA (9th ed.) Citation

Des Moines. Public Library. Policies for the Selection of Books and Related Library Materials. The Library, 1957.

Warning: These citations may not always be 100% accurate.