Gelb, I. J., Eichler, B. L., & Kramer, S. N. (1976). Quantitative Evaluation of Slavery and Serfdom. Kramer anniversary volume, 195-208.
Chicago Style (17th ed.) CitationGelb, Ignace J., Barry L. Eichler, and Samuel Noah Kramer. "Quantitative Evaluation of Slavery and Serfdom." Kramer Anniversary Volume 1976: 195-208.
MLA (8th ed.) CitationGelb, Ignace J., et al. "Quantitative Evaluation of Slavery and Serfdom." Kramer Anniversary Volume, 1976, pp. 195-208.
Warning: These citations may not always be 100% accurate.