Lansangan, J. E. G., & Pe, H. C. A cost-benefit analysis of street vending.
Lua i Stíl Chicago (17ú heag.)Lansangan, Jonathan Earl G., agus Hans Christopher Pe. A Cost-benefit Analysis of Street Vending.
Lua MLA (9ú heag.)Lansangan, Jonathan Earl G., agus Hans Christopher Pe. A Cost-benefit Analysis of Street Vending.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.