(1966). Decision making and the elementary school principal / Department of Elementary School Principals, National Education Association ; [prepared for the Department by: William L. Pharis, Jack D. Roberts, Richard Wynn].
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Decision Making and the Elementary School Principal / Department of Elementary School Principals, National Education Association ; [prepared for the Department by: William L. Pharis, Jack D. Roberts, Richard Wynn]. 1966.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Decision Making and the Elementary School Principal / Department of Elementary School Principals, National Education Association ; [prepared for the Department by: William L. Pharis, Jack D. Roberts, Richard Wynn]. 1966.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.