APA (7th ed.) Citation

Kartal, G. (2020). How Vocabulary is Learned. TESL-EJ, 23(4), 1.

Chicago Style (17th ed.) Citation

Kartal, Galip. "How Vocabulary Is Learned." TESL-EJ 23, no. 4 (2020): 1.

MLA (9th ed.) Citation

Kartal, Galip. "How Vocabulary Is Learned." TESL-EJ, vol. 23, no. 4, 2020, p. 1.