Gaya APA

Aigner, D., Goldberger, A, S. (1977). Contributions to Economic Analysis: Latent Variables on Socio-Economic Models . Amsterdam: North Holland Publishing Co..

Gaya MLA

Aigner, D.J.., Goldberger, A., S. "Contributions to Economic Analysis: Latent Variables on Socio-Economic Models". Amsterdam: North Holland Publishing Co., 1977. Text.