Butz, M. V. Motivation: Martin V. Butz. Handbuch Kognitionswissenschaft.(2013).
Cita Chicago (17th ed.)Butz, Martin V. "Motivation: Martin V. Butz." Handbuch Kognitionswissenschaft.(2013) .
Cita MLA (8th ed.)Butz, Martin V. "Motivation: Martin V. Butz." Handbuch Kognitionswissenschaft.(2013), .
Atenció: Aquestes cites poden no estar 100% correctes.