Cita APA (7a ed.)

Edin, K., & Kefalas, M. J. (2011). Promises I can keep: Why poor women put motherhood before marriage ([New ed.].). University of California Press.

Cita Chicago Style (17a ed.)

Edin, Kathryn, y Maria J. Kefalas. Promises I Can Keep: Why Poor Women Put Motherhood Before Marriage. [New ed.]. Berkeley: University of California Press, 2011.

Cita MLA (8a ed.)

Edin, Kathryn, y Maria J. Kefalas. Promises I Can Keep: Why Poor Women Put Motherhood Before Marriage. [New ed.]. University of California Press, 2011.