Webster, W. E. (1994). Voices in the Hall high school pricipals at work. Phi Delta Kappa Educational Foundation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWebster, William E. Voices in the Hall High School Pricipals at Work. USA: Phi Delta Kappa Educational Foundation, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWebster, William E. Voices in the Hall High School Pricipals at Work. Phi Delta Kappa Educational Foundation, 1994.
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