APA aipamena

Valli, M., & Ibarra, A. Walk the line: The art of drawing.

Chicago Style aipamena

Valli, Marc, and Ana Ibarra. Walk the Line: The Art of Drawing.

MLA aipamena

Valli, Marc, and Ana Ibarra. Walk the Line: The Art of Drawing.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.