Παραπομπή APA

S.R. Ranganathan. Depth classification: Paper photocopy of annuals of library science vol:3 (1956) pages 33-72. Indian national scientific documentation centre.

Παραπομπή Chicago Style

S.R. Ranganathan. Depth Classification: Paper Photocopy of Annuals of Library Science Vol:3 (1956) Pages 33-72. New Delhi: Indian national scientific documentation centre.

Παραπομπή MLA

S.R. Ranganathan. Depth Classification: Paper Photocopy of Annuals of Library Science Vol:3 (1956) Pages 33-72. Indian national scientific documentation centre.