APA (7 वां संस्करण) प्रशस्ति पत्र
Lytje, M. (2015). Challenging ideas: Theory and empirical research in the social sciences and humanities. Cambridge Scholars Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Lytje, Maren. Challenging Ideas: Theory and Empirical Research in the Social Sciences and Humanities. Newcastle upon Tyne, England: Cambridge Scholars Publishing, 2015.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Lytje, Maren. Challenging Ideas: Theory and Empirical Research in the Social Sciences and Humanities. Cambridge Scholars Publishing, 2015.
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