APA Style
SPSS For Windows Installations Instruction Release 6.0. (1993).
USA:
SPSS INC.
Chicago Style
SPSS For Windows Installations Instruction Release 6.0.
.
USA:
SPSS INC,
1993.
.
MLA Style
SPSS For Windows Installations Instruction Release 6.0.
.
USA:
SPSS INC,
1993.
.
Turabian Style
SPSS For Windows Installations Instruction Release 6.0.
USA:
SPSS INC,
1993.
.