Emotions and life perspectives from psychology, biology, and evolution av Plutchik, Robert

The psychology and biology of emotion av Plutchik, Robert

Foundations of experimental research av Plutchik, Robert

Emotion a psychoevolutionary synthesis av Plutchik, Robert

Emotion av Plutchik, Robert

Programmed learning aid for emotion av Plutchik, Robert

Foundations of experimental research av Plutchik, Robert

Foundations of experimental research av Plutchik, Robert

The emotions facts, theories, and a new model av Plutchik, Robert