APA (7th ed.) Citation

Davies, R. (1991). At my heart's core & Overlaid: Two plays. Simon & Pierre.

Chicago Style (17th ed.) Citation

Davies, Robertson. At My Heart's Core & Overlaid: Two Plays. Toronto: Simon & Pierre, 1991.

MLA (8th ed.) Citation

Davies, Robertson. At My Heart's Core & Overlaid: Two Plays. Simon & Pierre, 1991.