Link to database; restricted to yorku.ca.
From the vendor:
PsycEXTRA, produced by the American Psychological Association (APA), is a bibliographic and full-text companion to the scholarly PsycINFO database. The document types included in PsycEXTRA consist of technical, annual and government reports, conference papers, newsletters, magazines, newspapers, consumer brochures and more. This database complements PsycINFO and the other APA databases with extensive coverage of gray literature relating to psychology and the behavioral sciences; it contains more than 100,000 records. PsycEXTRA is indexed with controlled vocabulary from APA’s Thesaurus of Psychological Index Terms.