Cita APA (7th ed.)

Huizingh, E. (1994). Introduction to SPSS/PC+5.0 and data entry. Addison-Wesley.

Cita Chicago (17th ed.)

Huizingh, Eelko. Introduction to SPSS/PC+5.0 and Data Entry. England: Addison-Wesley, 1994.

Cita MLA (9th ed.)

Huizingh, Eelko. Introduction to SPSS/PC+5.0 and Data Entry. Addison-Wesley, 1994.