APA aipamena

Batra, s. Drafting and office procedure. Bright.

Chicago Style aipamena

Batra, shakti. Drafting and Office Procedure. New Delhi: Bright.

MLA aipamena

Batra, shakti. Drafting and Office Procedure. Bright.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.