Inhaltsangabe, Tagungsband, Symposium, Ecology, Folivory, Arboreal lifestyle, Tropics, Mammals, Food, 1975, Content)
Symposia of the National Zoological Park Smithsonian Institution Press Washington
Tiergarten Bernburg – Research in zoos and aquariums, conference, 1973, (Inhaltsangaben, Content)
Washington, D.C. 1975. ISBN 0-309-02319-X.
Der Zoologische Garten, Neue Folge, Band 45, (Inhaltsangaben, Content)
National Zoological Park, Washington.
Tiergarten Bernburg – International Zoo Yearbook (Inhaltsangaben, Content)
Anonym: Horse meat substitute at the National Zoological Park, Washington[, U.S.A
Tiergarten Bernburg – Zeitschrift Pallasia
Washington 1921. | Life Histories of North American Petrels and Pelicans and their
Der Zoologische Garten, Neue Folge, Band 43, (Inhaltsangaben, Content)
National Zoo, Washington.
