Παραπομπή APA

Ranganathan S R. (1974). Business information service. Clive Bingley.

Παραπομπή Chicago Style

Ranganathan S R. Business Information Service. London: Clive Bingley, 1974.

Παραπομπή MLA

Ranganathan S R. Business Information Service. Clive Bingley, 1974.