Cita APA (7th ed.)

LEWIS-BECK MICHAEL S. (1993). EXPERIMENTAL DESIGN AND METHODS. SAGE PUBLICATIONS.

Cita Chicago (17th ed.)

LEWIS-BECK MICHAEL S. EXPERIMENTAL DESIGN AND METHODS. LONDON: SAGE PUBLICATIONS, 1993.

Cita MLA (9th ed.)

LEWIS-BECK MICHAEL S. EXPERIMENTAL DESIGN AND METHODS. SAGE PUBLICATIONS, 1993.

Atenció: Aquestes cites poden no estar 100% correctes.