Παραπομπή APA

Rama Devi Tella. (2006). Access and use of grey literature in social sciences: Problems and prospects. Ess Ess Publicaions.

Παραπομπή Chicago Style

Rama Devi Tella. Access and Use of Grey Literature in Social Sciences: Problems and Prospects. New Delhi: Ess Ess Publicaions, 2006.

Παραπομπή MLA

Rama Devi Tella. Access and Use of Grey Literature in Social Sciences: Problems and Prospects. Ess Ess Publicaions, 2006.