Citazione Stile APA (7a Edizione)

Layard, P. R. G. (1972). Cost-benefit analysis: Selected readings. Penguin Education.

Citazione stile Chigago Style (17a edizione)

Layard, P. R. G. Cost-benefit Analysis: Selected Readings. Harmondsworth, Eng. ; Baltimore: Penguin Education, 1972.

Citatione MLA (8a ed.)

Layard, P. R. G. Cost-benefit Analysis: Selected Readings. Penguin Education, 1972.