Amanda Lawrence, Paul Weldon, Julian Thomas, & John Houghton. Where is the evidence: Realising the value of grey literature for public policy and practice.
Chicago-Zitierstil (17. Ausg.)Amanda Lawrence, Paul Weldon, Julian Thomas, und John Houghton. Where Is the Evidence: Realising the Value of Grey Literature for Public Policy and Practice.
MLA-Zitierstil (9. Ausg.)Amanda Lawrence, et al. Where Is the Evidence: Realising the Value of Grey Literature for Public Policy and Practice.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.