APA aipamena

Rubbra, B. (1980). Draw portraits. A & C Black.

Chicago Style aipamena

Rubbra, Benedict. Draw Portraits. London: A & C Black, 1980.

MLA aipamena

Rubbra, Benedict. Draw Portraits. A & C Black, 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.