Klinkhammer, J. (2009). Student Pieces: A Second Look at Problem Solving. e-Publications@Marquette.
Lua i Stíl Chicago (17ú heag.)Klinkhammer, John. Student Pieces: A Second Look at Problem Solving. e-Publications@Marquette, 2009.
Lua MLA (8ú heag.)Klinkhammer, John. Student Pieces: A Second Look at Problem Solving. e-Publications@Marquette, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.