MacAndrew, R. (2001). A puzzle forlogan. Cambridge University Press.
Cita Chicago (17th ed.)MacAndrew, Richard. A Puzzle Forlogan. Cambridge: Cambridge University Press, 2001.
Cita MLA (9th ed.)MacAndrew, Richard. A Puzzle Forlogan. Cambridge University Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.