Παραπομπή σε μορφή APA (7η εκδ.)

Penrose, E. (1968). A Note on Development Planning and The Role of The Enterprise. The Institute of National Planning.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Penrose, E. A Note on Development Planning and The Role of The Enterprise. Cairo: The Institute of National Planning, 1968.

Παραπομπή σε μορφή MLA (9th εκδ.)

Penrose, E. A Note on Development Planning and The Role of The Enterprise. The Institute of National Planning, 1968.