Champion, H. (2023). Seasonal progress of height growth in trees. Manager of Publications.
Lua i Stíl Chicago (17ú heag.)Champion, H.G. Seasonal Progress of Height Growth in Trees. Manager of Publications, 2023.
Lua MLA (9ú heag.)Champion, H.G. Seasonal Progress of Height Growth in Trees. Manager of Publications, 2023.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.