Duryea, J. B. (1925). What to know about life insurance, a salesman's view of the science of life insurance. National Underwriter.
Chicago Style aipamenaDuryea, John Burton. What to Know About Life Insurance, a Salesman's View of the Science of Life Insurance. Cincinnati: National Underwriter, 1925.
MLA aipamenaDuryea, John Burton. What to Know About Life Insurance, a Salesman's View of the Science of Life Insurance. National Underwriter, 1925.
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