Cumming, D. (2020). Crowdfunding. ELSEVIER.
Lua i Stíl Chicago (17ú heag.)Cumming, Douglas. Crowdfunding. ELSEVIER, 2020.
Lua MLA (8ú heag.)Cumming, Douglas. Crowdfunding. ELSEVIER, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.