APA aipamena

Dahlberg I. (1978). Ontical structures and universal classification. Sarada Ranganathan Endowment.

Chicago Style aipamena

Dahlberg I. Ontical Structures and Universal Classification. London: Sarada Ranganathan Endowment, 1978.

MLA aipamena

Dahlberg I. Ontical Structures and Universal Classification. Sarada Ranganathan Endowment, 1978.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.