APA (7th ed.) Citation

Περγάρης, Β. Γ. (1990). A new approach to English grammar. E. T. Publications.

Chicago Style (17th ed.) Citation

Περγάρης, Βασίλειος Γ. A New Approach to English Grammar. Athens: E. T. Publications, 1990.

MLA (9th ed.) Citation

Περγάρης, Βασίλειος Γ. A New Approach to English Grammar. E. T. Publications, 1990.