Birnbaum, D. (1999). Just So. frieze.
Cita Chicago (17th ed.)Birnbaum, Daniel. "Just So." Frieze 1999.
Cita MLA (8th ed.)Birnbaum, Daniel. "Just So." Frieze, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)