APA (7th ed.) Citation

Idei | Humanus. Center for personal development. Bulgaria. Cambridge University Press.

Chicago Style (17th ed.) Citation

Idei | Humanus. Center for Personal Development. Bulgaria. Cambridge University Press.

MLA (8th ed.) Citation

Idei | Humanus. Center for Personal Development. Bulgaria. Cambridge University Press.

Warning: These citations may not always be 100% accurate.