Citazione Stile APA (7a Edizione)

Culbertson, J. A. (1974). Performance objectives for school principals: Concepts and instruments. McCutchan Pub.

Citazione stile Chigago Style (17a edizione)

Culbertson, Jack A. Performance Objectives for School Principals: Concepts and Instruments. Berkeley, Calif: McCutchan Pub, 1974.

Citatione MLA (9a ed.)

Culbertson, Jack A. Performance Objectives for School Principals: Concepts and Instruments. McCutchan Pub, 1974.