APA aipamena

Olsen, H. (1963). Painting portraits: How to capture likeness and personality. Oak Tree Press.

Chicago Style aipamena

Olsen, Helen. Painting Portraits: How to Capture Likeness and Personality. London: Oak Tree Press, 1963.

MLA aipamena

Olsen, Helen. Painting Portraits: How to Capture Likeness and Personality. Oak Tree Press, 1963.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.