Welburn, A. J. (2004). Rudolf Steiner's philosophy: And the crisis of contemporary thought. Floris.
Citazione stile Chigago Style (17a edizione)Welburn, Andrew J. Rudolf Steiner's Philosophy: And the Crisis of Contemporary Thought. Edinburgh: Floris, 2004.
Citatione MLA (8a ed.)Welburn, Andrew J. Rudolf Steiner's Philosophy: And the Crisis of Contemporary Thought. Floris, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.