एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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