APA (7 वां संस्करण) प्रशस्ति पत्र
Barbera, M. L., & Rasmussen, T. (2007). The verbal behavior approach: How to teach children with autism and related disorders. Jessica Kingsley Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Barbera, Mary Lynch, और Tracy Rasmussen. The Verbal Behavior Approach: How to Teach Children with Autism and Related Disorders. London ; Philadelphia: Jessica Kingsley Publishers, 2007.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Barbera, Mary Lynch, और Tracy Rasmussen. The Verbal Behavior Approach: How to Teach Children with Autism and Related Disorders. Jessica Kingsley Publishers, 2007.
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