Hügel, F. (1913). Eternal life: A study of its implications and applications (2nd ed. (rev.).). T. & T. Clark.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHügel, Friedrich. Eternal Life: A Study of Its Implications and Applications. 2nd ed. (rev.). Edinburgh: T. & T. Clark, 1913.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHügel, Friedrich. Eternal Life: A Study of Its Implications and Applications. 2nd ed. (rev.). T. & T. Clark, 1913.
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