APA aipamena

(1991). Pulp & paper statistics 1991. Japan: Japan Paper Association.

Chicago Style aipamena

Pulp & Paper Statistics 1991. Japan: Japan Paper Association, 1991.

MLA aipamena

Pulp & Paper Statistics 1991. Japan: Japan Paper Association, 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.