Dyfyniad APA

Zetsche, U., Ehring, T., & Ehlers, A. (2009). The effects of rumination on mood and intrusive memories after exposure to traumatic material: An experimental study.

Dyfyniad Arddull Chicago

Zetsche, U., T. Ehring, and A. Ehlers. The Effects of Rumination on Mood and Intrusive Memories After Exposure to Traumatic Material: An Experimental Study. 2009.

Dyfyniad MLA

Zetsche, U., et al. The Effects of Rumination on Mood and Intrusive Memories After Exposure to Traumatic Material: An Experimental Study. 2009.

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