Cita APA (7th ed.)

ebrary, Inc, & Fultner, B. (2011). Jürgen Habermas: Key concepts. Acumen.

Cita Chicago (17th ed.)

ebrary, Inc, i Barbara Fultner. Jürgen Habermas: Key Concepts. Durham, England: Acumen, 2011.

Cita MLA (9th ed.)

ebrary, Inc, i Barbara Fultner. Jürgen Habermas: Key Concepts. Acumen, 2011.