![Humboldt, Alexander von. 1819-1829. Personal narrative of travels to the equinoctial regions of the New Continent, during the years 1799-1804. By Alexander de Humboldt, and Aimé Bonpland; with maps, plans, &c. written Humboldt, Alexander von. 1819-1829. Personal narrative of travels to the equinoctial regions of the New Continent, during the years 1799-1804. By Alexander de Humboldt, and Aimé Bonpland; with maps, plans, &c. written](http://darwin-online.org.uk/converted/scans/1814-29_Humboldt_A597.1-7(online)/1814-29_Humboldt_A597.6a_060.jpg)
Humboldt, Alexander von. 1819-1829. Personal narrative of travels to the equinoctial regions of the New Continent, during the years 1799-1804. By Alexander de Humboldt, and Aimé Bonpland; with maps, plans, &c. written
![Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research](https://ojs.aaresearchindex.com/public/journals/11/cover_issue_54_en_US.png)
Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research
![Maria Lourdes's research works | Universidade Federal do Espírito Santo, Vitória (UFES) and other places Maria Lourdes's research works | Universidade Federal do Espírito Santo, Vitória (UFES) and other places](https://www.researchgate.net/profile/Josafhat-Ruiz/publication/347990773/figure/fig2/AS:975231921422337@1609524817308/Map-of-authors-who-publish-related-topics-on-papaya-The-size-of-the-circle-and-the-label_Q320.jpg)