Farrell, H. (1926). What price progress?: The stake of the investor in the discoveries of science. New York: G. P. Putnam's sons.
استشهاد بنمط شيكاغوFarrell, Hugh. What Price Progress?: The Stake of the Investor in the Discoveries of Science. New York: G. P. Putnam's sons, 1926.
MLA استشهادFarrell, Hugh. What Price Progress?: The Stake of the Investor in the Discoveries of Science. New York: G. P. Putnam's sons, 1926.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.