Cita APA (7a ed.)

Nettles, M. T., & Millett, C. M. (2006). Three magic letters: Getting to Ph. D. Johns Hopkins University Press.

Cita Chicago Style (17a ed.)

Nettles, Michael T., y Catherine M. Millett. Three Magic Letters: Getting to Ph. D. Baltimore: Johns Hopkins University Press, 2006.

Cita MLA (9a ed.)

Nettles, Michael T., y Catherine M. Millett. Three Magic Letters: Getting to Ph. D. Johns Hopkins University Press, 2006.