APA (7th ed.) Citation

Hedderson, J. (1991). SPSS/PC+ made simple. Wadsworth Pub. Co.

Chicago Style (17th ed.) Citation

Hedderson, John. SPSS/PC+ Made Simple. Belmont, Calif: Wadsworth Pub. Co, 1991.

MLA (9th ed.) Citation

Hedderson, John. SPSS/PC+ Made Simple. Wadsworth Pub. Co, 1991.