APA

Ranganathan S R,, . (1989). Classification and communication. New Delhi: UBSPD.

Chicago

Ranganathan S R,, . 1989. Classification and communication. New Delhi: UBSPD.

Harvard

Ranganathan S R,, . (1989). Classification and communication. New Delhi: UBSPD.

MLA

Ranganathan S R,, . Classification and communication. New Delhi: UBSPD. 1989.