Citazione Stile APA (7a Edizione)

SPSS INC. (1989). UNIVERSLAS SPSS PC+ FOR THE IBMPC XT AT MANUAL C. SPSS INC.

Citazione stile Chigago Style (17a edizione)

SPSS INC. UNIVERSLAS SPSS PC+ FOR THE IBMPC XT AT MANUAL C. CHICAGO ILLNOIS: SPSS INC, 1989.

Citatione MLA (9a ed.)

SPSS INC. UNIVERSLAS SPSS PC+ FOR THE IBMPC XT AT MANUAL C. SPSS INC, 1989.