The Clark Library owns the property rights to its collections but does not hold the copyright to these materials and therefore cannot grant or deny permission to use them. Researchers are responsible for determining the copyright status of any materials they may wish to use, investigating the owner of the copyright, and obtaining permission for their intended publication or other use. In all cases, you must cite the Clark Library as the source with the following credit line: The William Andrews Clark Memorial Library, University of California, Los Angeles.