Levinson, Stephen C. Language and Cognition Group, MPI for Psycholinguistics, Max Planck Society;
Enfield, N. J. Language and Cognition Group, MPI for Psycholinguistics, Max Planck Society;
http://fieldmanuals.mpi.nl/volumes/2001/ (Supplementary material)
Levinson, S. C., & Enfield, N. J. (Eds.). (2001). Manual for the field season 2001. Nijmegen: Max Planck Institute for Psycholinguistics.