Echterling, L. G., Presbury, J. H., & McKee, J. E. (2005). Crisis intervention: Promoting resilience and resolution in troubled times. Pearson/Merrill Prentice Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEchterling, Lennis G., Jack H. Presbury, और J. Edson McKee. Crisis Intervention: Promoting Resilience and Resolution in Troubled Times. Upper Saddle River, N.J: Pearson/Merrill Prentice Hall, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEchterling, Lennis G., et al. Crisis Intervention: Promoting Resilience and Resolution in Troubled Times. Pearson/Merrill Prentice Hall, 2005.
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