BIDWELL, R. (1974). Plant Physiology / Rgs. Bidwell. Macmillan.
Lua i Stíl Chicago (17ú heag.)BIDWELL, RGS. Plant Physiology / Rgs. Bidwell. Macmillan, 1974.
Lua MLA (8ú heag.)BIDWELL, RGS. Plant Physiology / Rgs. Bidwell. Macmillan, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.