APA-referens (7:e uppl.)

Laaksonen, S. (2018). Survey methodology and missing data: Tools and techniques for pratitioners. Springer International Publishing.

Chicago-referens (17:e uppl.)

Laaksonen, Seppo. Survey Methodology and Missing Data: Tools and Techniques for Pratitioners. Switzerland: Springer International Publishing, 2018.

MLA-referens (8:e uppl.)

Laaksonen, Seppo. Survey Methodology and Missing Data: Tools and Techniques for Pratitioners. Springer International Publishing, 2018.