Cita APA (7th ed.)
ebrary, Inc, Rodgers, T., & Wolfe, D. (2002). Puzzlers' tribute: A feast for the mind. A.K. Peters.
Cita Chicago (17th ed.)
ebrary, Inc, Tom Rodgers, i David Wolfe. Puzzlers' Tribute: A Feast for the Mind. Natick, Mass.: A.K. Peters, 2002.
Cita MLA (9th ed.)
ebrary, Inc, et al. Puzzlers' Tribute: A Feast for the Mind. A.K. Peters, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.