WILLIAMS WALTER. (1988). STUDYING IMPLEMENTATION METHODOLOGICAL AND ADMINISTRATIVE ISSUES. POPULAR PRAKASHAN.
Chicago-referens (17:e uppl.)WILLIAMS WALTER. STUDYING IMPLEMENTATION METHODOLOGICAL AND ADMINISTRATIVE ISSUES. BOMBAY: POPULAR PRAKASHAN, 1988.
MLA-referens (9:e uppl.)WILLIAMS WALTER. STUDYING IMPLEMENTATION METHODOLOGICAL AND ADMINISTRATIVE ISSUES. POPULAR PRAKASHAN, 1988.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.