Cita APA (7a ed.)

Dickens, C., & Huggins, V. (1990). Hard times. Collins E.L.T.

Cita Chicago Style (17a ed.)

Dickens, Charles, y Viola Huggins. Hard Times. London: Collins E.L.T, 1990.

Cita MLA (9a ed.)

Dickens, Charles, y Viola Huggins. Hard Times. Collins E.L.T, 1990.