APA

Jeff Kinney, . (2014). Gregs Tagebuch. : Baumhaus.

Chicago

Jeff Kinney, . 2014. Gregs Tagebuch. : Baumhaus.

Harvard

Jeff Kinney, . (2014). Gregs Tagebuch. : Baumhaus.

MLA

Jeff Kinney, . Gregs Tagebuch. : Baumhaus. 2014.