Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (8ú heag.)

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

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