Cita APA (7a ed.)

Flaherty, S., & Ahrens, L. (2016). My Petersburg. Alfred Publishing Co., Inc..

Cita Chicago Style (17a ed.)

Flaherty, Stephen, y Lynn Ahrens. My Petersburg. Louisville, United States: Alfred Publishing Co., Inc., 2016.

Cita MLA (9a ed.)

Flaherty, Stephen, y Lynn Ahrens. My Petersburg. Alfred Publishing Co., Inc., 2016.