APA (7th ed.) Citation

Hull, C. H., & Nie, N. H. (1981). SOSS pocket guide: Release 9. SPSS Inc.

Chicago Style (17th ed.) Citation

Hull, C. Hadlai, and Norman H. Nie. SOSS Pocket Guide: Release 9. SPSS Inc, 1981.

MLA (8th ed.) Citation

Hull, C. Hadlai, and Norman H. Nie. SOSS Pocket Guide: Release 9. SPSS Inc, 1981.

Warning: These citations may not always be 100% accurate.