Cita APA (7a ed.)

Kratzmeier, H., & Horn, R. (1980). Advanced progressive matrices. Advanced progressive matrices [APM].

Cita Chicago Style (17a ed.)

Kratzmeier, Heinrich, y Ralf Horn. "Advanced Progressive Matrices." Advanced Progressive Matrices [APM] 1980.

Cita MLA (9a ed.)

Kratzmeier, Heinrich, y Ralf Horn. "Advanced Progressive Matrices." Advanced Progressive Matrices [APM], 1980.