APA استشهاد

(1994). Locarno agreement establishing an international classification for industrial design signed at London on October 8, 1968. WIPO.

استشهاد بنمط شيكاغو

Locarno Agreement Establishing an International Classification for Industrial Design Signed at London on October 8, 1968. Geneva: WIPO, 1994.

MLA استشهاد

Locarno Agreement Establishing an International Classification for Industrial Design Signed at London on October 8, 1968. WIPO, 1994.