APA (7th ed.) Citation

Linguaphone "Hellenike seira". Linguaphone Institute.

Chicago Style (17th ed.) Citation

Linguaphone "Hellenike Seira". London: Linguaphone Institute.

MLA (9th ed.) Citation

Linguaphone "Hellenike Seira". Linguaphone Institute.

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