Cita APA (7a ed.)

Greenall, S., & Pye, D. (1991). Reading 2. Cambridge University Press.

Cita Chicago Style (17a ed.)

Greenall, Simon, y Diana Pye. Reading 2. Cambridge: Cambridge University Press, 1991.

Cita MLA (8a ed.)

Greenall, Simon, y Diana Pye. Reading 2. Cambridge University Press, 1991.