Book
Die Vegetation der Erde. Sammlung pflanzengeographischer Monographien, hrsg. von A. Engler und O. Drude.1896 – 1923
Engler, Adolf
Book
Trees and shrubs : illustrations of new or little known ligneous plants / prepared chiefly from material at the Arnold Arboreum of Harvard University and edited by Charles Sprague Sargent.1905 – 1913
Sargent, Charles Sprague, 1841-1927.
Plan
Planting plan for portion of Humboldt Park [cartographic material] / [Jens Jensen].20th century
Jensen, Jens