Ramsey, R. D. (1996). The principal's book of lists. Englewood Cliffs, N.J.: Prentice Hall.
Trích dẫn kiểu ChicagoRamsey, Robert D. The Principal's Book of Lists. Englewood Cliffs, N.J.: Prentice Hall, 1996.
Deismireacht MLARamsey, Robert D. The Principal's Book of Lists. Englewood Cliffs, N.J.: Prentice Hall, 1996.
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