APA

Greene R. E., National Association of Secondary School Principals U.S, . (1972). Administrative appraisal: a step to improved leadership. Washington: National Association of Secondary School Principals.

Chicago

Greene Robert E, National Association of Secondary School Principals U.S, . 1972. Administrative appraisal: a step to improved leadership. Washington: National Association of Secondary School Principals.

Harvard

Greene R. E., National Association of Secondary School Principals U.S, . (1972). Administrative appraisal: a step to improved leadership. Washington: National Association of Secondary School Principals.

MLA

Greene Robert E, National Association of Secondary School Principals U.S, . Administrative appraisal: a step to improved leadership. Washington: National Association of Secondary School Principals. 1972.