Cita APA (7a ed.)

Tynan, E. (1980). Sunderlandia. Cooperatives Research Unit, Open University.

Cita Chicago Style (17a ed.)

Tynan, Eirlys. Sunderlandia. Milton Keynes: Cooperatives Research Unit, Open University, 1980.

Cita MLA (9a ed.)

Tynan, Eirlys. Sunderlandia. Cooperatives Research Unit, Open University, 1980.