84. Wood, C.M., Munger, R.S., and Toews, D.P. (1989) Ammonia, urea, and H+ distribution and the evolution of ureotelism in amphibians. J. Exp. Biol. 144 pp: 215-233. (PDF)
84. Wood, C.M., Munger, R.S., and Toews, D.P. (1989) Ammonia, urea, and H+ distribution and the evolution of ureotelism in amphibians. J. Exp. Biol. 144 pp: 215-233. (PDF)