Cita APA (7th ed.)

Usui, H. (2011). Ikkai de gokaku nihongo noryoku shiken n1 bunpo taisaku (First edition.). Takahashishoten.

Cita Chicago (17th ed.)

Usui, Hiromi. Ikkai De Gokaku Nihongo Noryoku Shiken N1 Bunpo Taisaku. First edition. Tokyo: Takahashishoten, 2011.

Cita MLA (9th ed.)

Usui, Hiromi. Ikkai De Gokaku Nihongo Noryoku Shiken N1 Bunpo Taisaku. First edition. Takahashishoten, 2011.