Bleichmar, D. The geography of observation: Distance and visibility in eighteenth-century botancial travel / Daniela Bleichmar. Histories of scientific observation.(2011).
Lua i Stíl Chicago (17ú heag.)Bleichmar, Daniela. "The Geography of Observation: Distance and Visibility in Eighteenth-century Botancial Travel / Daniela Bleichmar." Histories of Scientific Observation.(2011) .
Lua MLA (8ú heag.)Bleichmar, Daniela. "The Geography of Observation: Distance and Visibility in Eighteenth-century Botancial Travel / Daniela Bleichmar." Histories of Scientific Observation.(2011), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.