Cita APA (7th ed.)

(1980). Manual de operación SPSS: Statistical Package for the Social Sciences. s,n.

Cita Chicago (17th ed.)

Manual De Operación SPSS: Statistical Package for the Social Sciences. s.l: s,n, 1980.

Cita MLA (9th ed.)

Manual De Operación SPSS: Statistical Package for the Social Sciences. s,n, 1980.