Spears, Harold
Improving the supervision of instruction Harold Spears - Englewood Cliffs: Prentice Hall, 1953. - xii, 478p.
Includes index
Eng
School supervision
Teaching
371.3 / SPI
Improving the supervision of instruction Harold Spears - Englewood Cliffs: Prentice Hall, 1953. - xii, 478p.
Includes index
Eng
School supervision
Teaching
371.3 / SPI