NAIMAN, A. (1986). Understanding Statistics Arnold Naiman, Robert Rosenfeld And Gene Zirkel. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)NAIMAN, Arnold. Understanding Statistics Arnold Naiman, Robert Rosenfeld And Gene Zirkel. McGraw-Hill, 1986.
Lua MLA (8ú heag.)NAIMAN, Arnold. Understanding Statistics Arnold Naiman, Robert Rosenfeld And Gene Zirkel. McGraw-Hill, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.