APA-referens (7:e uppl.)
AYALA, L., & ET AL. (2006). MEASUREMENT OF THE EFFICIENCY OF GUARANTEED INCOME PROGRAMMES: AN EMPIRICAL APPLICATION USING A DATA ENVELOPMENT ANALYSIS. [s.n.].
Chicago-referens (17:e uppl.)
AYALA, L., och ET AL. MEASUREMENT OF THE EFFICIENCY OF GUARANTEED INCOME PROGRAMMES: AN EMPIRICAL APPLICATION USING A DATA ENVELOPMENT ANALYSIS. [s.l.]: [s.n.], 2006.
MLA-referens (9:e uppl.)
AYALA, L., och ET AL. MEASUREMENT OF THE EFFICIENCY OF GUARANTEED INCOME PROGRAMMES: AN EMPIRICAL APPLICATION USING A DATA ENVELOPMENT ANALYSIS. [s.n.], 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.