Tillich, P. (1973). The boundaries of our being: A collection of his sermons, The eternal now and The new being, with his autobiographical sketch, On the boundary. Collins.
Chicago Style (17th ed.) CitationTillich, Paul. The Boundaries of Our Being: A Collection of His Sermons, The Eternal Now and The New Being, with His Autobiographical Sketch, On the Boundary. [London]: Collins, 1973.
MLA (8th ed.) CitationTillich, Paul. The Boundaries of Our Being: A Collection of His Sermons, The Eternal Now and The New Being, with His Autobiographical Sketch, On the Boundary. Collins, 1973.
Warning: These citations may not always be 100% accurate.