Lua APA (7ú heag.)
Powell, P. R. (2013). Retention and resistance: Writing instruction and students who leave. Utah State University Press.
Lua i Stíl Chicago (17ú heag.)
Powell, Pegeen Reichert. Retention and Resistance: Writing Instruction and Students Who Leave. Logan: Utah State University Press, 2013.
Lua MLA (9ú heag.)
Powell, Pegeen Reichert. Retention and Resistance: Writing Instruction and Students Who Leave. Utah State University Press, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.