West, K. R. (1983). How to draw plants: The techniques of botanical illustration. Herbert Press in association with the British Museum (natural History.
Lua i Stíl Chicago (17ú heag.)West, Keith R. How to Draw Plants: The Techniques of Botanical Illustration. London: Herbert Press in association with the British Museum (natural History, 1983.
Lua MLA (9ú heag.)West, Keith R. How to Draw Plants: The Techniques of Botanical Illustration. Herbert Press in association with the British Museum (natural History, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.