APA (7th ed.) Citation

Oka, M. (2009). Tobira gateway to advance Japanese: Learning through content and multimedia. Kurosio Publishers.

Chicago Style (17th ed.) Citation

Oka, Mayumi. Tobira Gateway to Advance Japanese: Learning Through Content and Multimedia. Tokyo: Kurosio Publishers, 2009.

MLA (9th ed.) Citation

Oka, Mayumi. Tobira Gateway to Advance Japanese: Learning Through Content and Multimedia. Kurosio Publishers, 2009.