Bartley, J. (1983). Invocations: The poetry and prose of Gwendolyn Mackwen. University of British Columbia Press.
Cita Chicago Style (17a ed.)Bartley, Jean. Invocations: The Poetry and Prose of Gwendolyn Mackwen. Vancouver, Canadá: University of British Columbia Press, 1983.
Cita MLA (9a ed.)Bartley, Jean. Invocations: The Poetry and Prose of Gwendolyn Mackwen. University of British Columbia Press, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.