APA

Carr A. H. Z., . (1962). John D. Rockefeller's secret weapon. New York: McGraw-Hill.

Chicago

Carr Albert H Z, . 1962. John D. Rockefeller's secret weapon. New York: McGraw-Hill.

Harvard

Carr A. H. Z., . (1962). John D. Rockefeller's secret weapon. New York: McGraw-Hill.

MLA

Carr Albert H Z, . John D. Rockefeller's secret weapon. New York: McGraw-Hill. 1962.