Lua APA (7ú heag.)
Metzger, P. W. (2007). The Art of Perspective: The Ultimate Guide for Artists in Every Medium. North Light Books.
Lua i Stíl Chicago (17ú heag.)
Metzger, Philip W. The Art of Perspective: The Ultimate Guide for Artists in Every Medium. Cincinnati, Ohio: North Light Books, 2007.
Lua MLA (9ú heag.)
Metzger, Philip W. The Art of Perspective: The Ultimate Guide for Artists in Every Medium. North Light Books, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.