Lua APA (7ú heag.)
ebrary, Inc, & Kreuter, F. (2013). Improving surveys with paradata: Analytic uses of process information. Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Frauke Kreuter. Improving Surveys with Paradata: Analytic Uses of Process Information. Hoboken, N.J.: Wiley & Sons, 2013.
Lua MLA (9ú heag.)
ebrary, Inc, agus Frauke Kreuter. Improving Surveys with Paradata: Analytic Uses of Process Information. Wiley & Sons, 2013.
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