1. AOAC (1980) Official methods of analysis, 13th ed. Washington: Association of Official Analytical Chemists
2. Bushnell DI (1909) The Choctaw of Bayou Lacomb, St. Tammany Parish, Louisiana. Smithson Inst Bur Am Ethnol Bull 48: 1–37
3. Cutrufelli R, Matthews RH (1986) Composition of foods: beverages raw, processed, prepared. USDA Agriculture Handbook 8–14
4. Davis EL, Kaplan L (1983) Comparative development of secondary xylem in roots ofPhaseolus species. Phyton 43: 45–55
5. Deeming SB, Weber CW (1977) Evaluation of hair analysis for determination of zinc status using rats. Am J Clin Nutr 30: 2047–2052