Παραπομπή APA

productivity Services International. (1971). Handbook of 100 new small industry schemes part II. Productivity services international.

Παραπομπή Chicago Style

productivity Services International. Handbook of 100 New Small Industry Schemes Part II. Bombay: Productivity services international, 1971.

Παραπομπή MLA

productivity Services International. Handbook of 100 New Small Industry Schemes Part II. Productivity services international, 1971.