Cita APA

Hull, C. H. (., & Nie, N. (1981). SPSS update 7-9: New procedure and facilities for release 7-9. New York:: McGraw Hill.

Citación estilo Chicago

Hull, C. Hadlai (Ed.), y N.H.(Ed.) Nie. SPSS Update 7-9: New Procedure and Facilities for Release 7-9. New York:: McGraw Hill, 1981.

Cita MLA

Hull, C. Hadlai (Ed.), y N.H.(Ed.) Nie. SPSS Update 7-9: New Procedure and Facilities for Release 7-9. New York:: McGraw Hill, 1981.