APA
Gupta B. M., Mathan S. S., . (1990). Handbook of libraries, archives and information centres in India. V 7. Science and technology information systems and centres. Delhi: Aditya Prakashan.
Chicago
Gupta B M, Mathan S S, . 1990. Handbook of libraries, archives and information centres in India. V 7. Science and technology information systems and centres. Delhi: Aditya Prakashan.
Harvard
Gupta B. M., Mathan S. S., . (1990). Handbook of libraries, archives and information centres in India. V 7. Science and technology information systems and centres. Delhi: Aditya Prakashan.
MLA
Gupta B M, Mathan S S, . Handbook of libraries, archives and information centres in India. V 7. Science and technology information systems and centres. Delhi: Aditya Prakashan. 1990.