Galenson,Walter, & Harviy Leibenstein. (1955). Investment Criteria, Productivity and Economic Development. Quarterly Journal of Eonomics.
Cytowanie według stylu Chicago (wyd. 17)Galenson,Walter, i Harviy Leibenstein. Investment Criteria, Productivity and Economic Development. New Jersey: Quarterly Journal of Eonomics, 1955.
Cytowanie według stylu MLA (wyd. 9)Galenson,Walter, i Harviy Leibenstein. Investment Criteria, Productivity and Economic Development. Quarterly Journal of Eonomics, 1955.