Παραπομπή APA

Roday, S. (1999). Hygine and sanitation in industry. McGraw-Hill.

Παραπομπή Chicago Style

Roday, S. Hygine and Sanitation in Industry. New Delhi: McGraw-Hill, 1999.

Παραπομπή MLA

Roday, S. Hygine and Sanitation in Industry. McGraw-Hill, 1999.