Lua APA (7ú heag.)

SPSS Inc., Marketing Department. (1988). SPSS /PC+ v2.0 Base manual: For the IBM PC/XT/AT and PS/2. SPSS Inc.

Lua i Stíl Chicago (17ú heag.)

SPSS Inc., Marketing Department. SPSS /PC+ V2.0 Base Manual: For the IBM PC/XT/AT and PS/2. USA: SPSS Inc, 1988.

Lua MLA (9ú heag.)

SPSS Inc., Marketing Department. SPSS /PC+ V2.0 Base Manual: For the IBM PC/XT/AT and PS/2. SPSS Inc, 1988.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.