Lawlor, D. W. (2001). Photosynthesis (3rd ed.). Viva Books.
Lua i Stíl Chicago (17ú heag.)Lawlor, David W. Photosynthesis. 3rd ed. New Delhi: Viva Books, 2001.
Lua MLA (9ú heag.)Lawlor, David W. Photosynthesis. 3rd ed. Viva Books, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.