Cita APA (7a ed.)

Boal, F. W., & Douglas, N. H. (1982). Integration and division: Geographical perspectives on the Northern Ireland problem. Academic.

Cita Chicago Style (17a ed.)

Boal, Frederick W., y Neville H. Douglas. Integration and Division: Geographical Perspectives on the Northern Ireland Problem. London [u.a.]: Academic, 1982.

Cita MLA (9a ed.)

Boal, Frederick W., y Neville H. Douglas. Integration and Division: Geographical Perspectives on the Northern Ireland Problem. Academic, 1982.