Cita APA (7a ed.)

Calls, A. (1996). Puzzle. Oikos-Tau.

Cita Chicago Style (17a ed.)

Calls, Albert. Puzzle. Vilassar de Mar: Oikos-Tau, 1996.

Cita MLA (9a ed.)

Calls, Albert. Puzzle. Oikos-Tau, 1996.