Mazengarb Report (1954) posted to Project Gutenberg
Thanks to Cori and several others, Oswald Mazengarb and friends' Report of the Special Committee on Moral Delinquency in Children and Adolescents is now available in a Project Gutenberg HTML edition! Other editions appear to be available, including archived files of the two plaintext editions on offer.
For some reason, book 14760 in the catalogue currently appears to point to a different book at the moment, but nonetheless the links go to Mazengarb's report. How odd. So, I guess chances are they might reassign numbers to the book at some point. But, it's there for now! :)
Thanks again go to Cori and other DP-related people for their help, and so on.