APA (7e ed.) Bronvermelding

Não informado. (1989). NTT Review. Nippon Telegraph and Telephone Corporation.

Chicago (17e ed.) Bronvermelding

Não informado. NTT Review. Tokyo: Nippon Telegraph and Telephone Corporation, 1989.

MLA (8e ed.) Bronvermelding

Não informado. NTT Review. Nippon Telegraph and Telephone Corporation, 1989.

Let op: Deze citaties zijn niet altijd 100% accuraat.