APA (7th ed.) Citation

Thomas, J. H. (1963). Paul Tillich, an appraisal.

Chicago Style (17th ed.) Citation

Thomas, John Heywood. Paul Tillich, an Appraisal. 1963.

MLA (9th ed.) Citation

Thomas, John Heywood. Paul Tillich, an Appraisal. 1963.

Warning: These citations may not always be 100% accurate.