APA-referens (7:e uppl.)

Peck Roxy. (2012). Introduction to Statistics and Data Analysis (4th.). Cengage Learning.

Chicago-referens (17:e uppl.)

Peck Roxy. Introduction to Statistics and Data Analysis. 4th. Australia: Cengage Learning, 2012.

MLA-referens (9:e uppl.)

Peck Roxy. Introduction to Statistics and Data Analysis. 4th. Cengage Learning, 2012.