Cita APA (7a ed.)

Hull, C. H., & Nie, N. H. (1979). SPSS update: New procedures and facilities for releases 7 and 8. McGraw-Hill.

Cita Chicago Style (17a ed.)

Hull, C. Hadlai, y Norman H. Nie. SPSS Update: New Procedures and Facilities for Releases 7 and 8. New York [etc.]: McGraw-Hill, 1979.

Cita MLA (9a ed.)

Hull, C. Hadlai, y Norman H. Nie. SPSS Update: New Procedures and Facilities for Releases 7 and 8. McGraw-Hill, 1979.