APA (7th ed.) Citation

Callaghan, J. (1973). A house divided: The dilemma of Northern Ireland. Collins.

Chicago Style (17th ed.) Citation

Callaghan, James. A House Divided: The Dilemma of Northern Ireland. London: Collins, 1973.

MLA (8th ed.) Citation

Callaghan, James. A House Divided: The Dilemma of Northern Ireland. Collins, 1973.