Hedges, S. B., Simmons, M. D., van Dijk, M. A., Caspers, G. J., de Jong, W. W., & Sibley, C. G. (1995). Phylogenetic relationships of the hoatzin, an enigmatic South American bird.

Hedges, S B., M D. Simmons, M A. van Dijk, G J. Caspers, W W. de Jong, and C G. Sibley. Phylogenetic Relationships of the Hoatzin, an Enigmatic South American Bird. 1995.

Hedges, S B., et al. Phylogenetic Relationships of the Hoatzin, an Enigmatic South American Bird. 1995.