http://www.worldcat.org/title/turning-on-the-system-war-in-the-philadelphia-public-schools/oclc/937229137 Choice;7:906 S 70 Linbrary j 95:1464 Ap 15 70 NYTBR p6 May 24 1970 also june 7 70 p44 also d 6 70 p99 BL 67 S 1 70 p16 KR 38 Jan 1 70 p48 PW v197 Jan 19 70 p77
- Bloland, Harland (1970). "Rev. of Turning on the System". Teachers College Record. 72 (1): 157–159. ISSN 0040-0475.