Citazione Stile APA (7a Edizione)

Alonzo, R. P. (1979). Social valuation of labor in a developing economy. s.n.].

Citazione stile Chigago Style (17a edizione)

Alonzo, Ruperto P. Social Valuation of Labor in a Developing Economy. [Manila: s.n.], 1979.

Citatione MLA (9a ed.)

Alonzo, Ruperto P. Social Valuation of Labor in a Developing Economy. s.n.], 1979.