APA (7th ed.) Citation

Halliday, D., & Walker, J. (2008). Φυσική. Gutenberg.

Chicago Style (17th ed.) Citation

Halliday, David, and J. Walker. Φυσική. Αθήνα: Gutenberg, 2008.

MLA (8th ed.) Citation

Halliday, David, and J. Walker. Φυσική. Gutenberg, 2008.

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