APA aipamena

MORRIS, L. (1975). Plastics Design. s.n.

Chicago Style aipamena

MORRIS, L.J. Plastics Design. s.n, 1975.

MLA aipamena

MORRIS, L.J. Plastics Design. s.n, 1975.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.