Lua APA (7ú heag.)

Dugdale, K. (2014). "Die Materielle Richtung der Utopieen": Uriel Birnbaum's contribution to Sloterdijk's "Spheres" / Kyle Dugdale. Utopian Studies.

Lua i Stíl Chicago (17ú heag.)

Dugdale, Kyle. ""Die Materielle Richtung Der Utopieen": Uriel Birnbaum's Contribution to Sloterdijk's "Spheres" / Kyle Dugdale." Utopian Studies 2014.

Lua MLA (8ú heag.)

Dugdale, Kyle. ""Die Materielle Richtung Der Utopieen": Uriel Birnbaum's Contribution to Sloterdijk's "Spheres" / Kyle Dugdale." Utopian Studies, 2014.

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