Helga Dietrich (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Helga Dietrich" in English language version.

refsWebsite

Global rank English rank

3^rd place

713^th place

3,176^th place

3,075^th place

3,035^th place

books.google.com

Llamacho, Juan A.; Larramendi, Julio (2005). The orchids of Cuba (in Spanish). Greta Editores. pp. 13–20. ISBN 9788493361525. Retrieved 1 March 2019.
Committee, Orchid Society of Minnesota Library (1989). Information Retrieval in Orchid Literature and a Bibliography of Orchid Literature in the Minneapolis and St. Paul Metropolitan Area ; Orchid Society of Minnesota, Library Committee. Orchid Society of Minnesota. pp. 3–5. Retrieved 1 March 2019.

"Tropicos | Person – Dietrich, Helga". www.tropicos.org. Retrieved 1 March 2019.