Holmes, W. (1980). Grass: Its production and utilization (2nd ed.). Blackwell Scientific Publications.
Lua i Stíl Chicago (17ú heag.)Holmes, W. Grass: Its Production and Utilization. 2nd ed. Oxford: Blackwell Scientific Publications, 1980.
Lua MLA (9ú heag.)Holmes, W. Grass: Its Production and Utilization. 2nd ed. Blackwell Scientific Publications, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.