Bonvillian , J., Kissane Lee, N., Dooley, T. T., & Loncke, F. (2020). Simplified Signs: A Manual Sign-Communication System for Special Populations, Volume 1. Open Book Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBonvillian , John, Nicole Kissane Lee, Tracy T. Dooley, और Filip Loncke. Simplified Signs: A Manual Sign-Communication System for Special Populations, Volume 1. Open Book Publishers, 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBonvillian , John, et al. Simplified Signs: A Manual Sign-Communication System for Special Populations, Volume 1. Open Book Publishers, 2020.
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