APA-referens (7:e uppl.)

LEVIN RICHARD I. (2008). STATISTICS FOR MANAGEMENT (7TH.). PEARSON EDUCATION.

Chicago-referens (17:e uppl.)

LEVIN RICHARD I. STATISTICS FOR MANAGEMENT. 7TH. NEW DELHI: PEARSON EDUCATION, 2008.

MLA-referens (9:e uppl.)

LEVIN RICHARD I. STATISTICS FOR MANAGEMENT. 7TH. PEARSON EDUCATION, 2008.