Cita APA

Nelson Associates, Inc. (1969). User survey of the New York Public Library Research Libraries.

Citación estilo Chicago

Nelson Associates, Inc. User Survey of the New York Public Library Research Libraries. [New York], 1969.

Cita MLA

Nelson Associates, Inc. User Survey of the New York Public Library Research Libraries. 1969.

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