Gaya APA

Brennan, M, J. (1987). Preface to quaantitative economics & econometrics . Dallas: Yayasan Ilmu-ilmu Sosial.

Gaya MLA

Brennan, Michael, J.. "Preface to quaantitative economics & econometrics". Dallas: Yayasan Ilmu-ilmu Sosial, 1987. Text.