The copyright interests in some of these materials have been transferred to or belong to San Diego State University. Copyright resides with the creators of materials contained in the collection or their heirs. The nature of historical archival and manuscript collections is such that copyright status may be difficult or even impossible to determine.  Requests for permission to publish must be submitted to the Head of Special Collections, San Diego... State University, Library and Information Access. When granted, permission is given on behalf of Special Collections as the owner of the physical item and is not intended to include or imply permission of the copyright holder(s), which must also be obtained in order to publish. Materials from our collections are made available for use in research, teaching, and private study. The user must assume full responsibility for any use of the materials, including but not limited to, infringement of copyright and publication rights of reproduced materials.