Ospick, F. D. (2002). Time-on-task and pupil achievement in science: Effects of instructional leadership.
Cita Chicago (17th ed.)Ospick, Flordelina D. Time-on-task and Pupil Achievement in Science: Effects of Instructional Leadership. 2002.
Cita MLA (9th ed.)Ospick, Flordelina D. Time-on-task and Pupil Achievement in Science: Effects of Instructional Leadership. 2002.
Atenció: Aquestes cites poden no estar 100% correctes.