Anne-Emanuelle Birn, Armando Solorzano. Public health policy paradoxes: science and politics in the Rockefeller Foundation’s hookworm campaign in Mexico in the 1920s. „Social Science & Medicine”. 49 (9), s. 1197–1213, 1999. DOI: 10.1016/S0277-9536(99)00160-4.
Harvard Business School: Colorado Fuel and Iron Corp.. library.hbs.edu. [dostęp 2016-08-06]. Cytat: By 1892 the company produced 75 percent of Colorado’s coal. C. F. & I. was acquired by the Rockefeller family and Gould interests in 1903. In 1906 it was estimated that 10 percent of Colorado’s population depended on the company for their employment. (ang.).
The Rockefeller Archive Center: Laura Spelman Rockefeller, 1839–1915. [w:] The Rockefellers [on-line]. rockarch.org. [dostęp 2016-08-10]. [zarchiwizowane z tego adresu (2012-03-17)]. (ang.).
The Rockefeller Archive Center: Laura Spelman Rockefeller, 1839–1915. [w:] The Rockefellers [on-line]. rockarch.org. [dostęp 2016-08-10]. [zarchiwizowane z tego adresu (2012-03-17)]. (ang.).