Lua APA (7ú heag.)

Platinum metals review. Johnson, Matthey & Co.

Lua i Stíl Chicago (17ú heag.)

Platinum Metals Review. London: Johnson, Matthey & Co.

Lua MLA (9ú heag.)

Platinum Metals Review. Johnson, Matthey & Co.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.