Cita APA (7a ed.)

Sperring, M., & Paterson, A. (2012). The shape of my heart. Bloomsbury.

Cita Chicago Style (17a ed.)

Sperring, Mark, y Alys Paterson. The Shape of My Heart. New York: Bloomsbury, 2012.

Cita MLA (8a ed.)

Sperring, Mark, y Alys Paterson. The Shape of My Heart. Bloomsbury, 2012.