Ueber die Widerstandsfähigkeit des Pollens gegen äussere Einflüsse
By: von Peter Rittinghaus.
Publisher: Carl Georgi
Published: 1887
Place of publication: Bonn
Language: ger
Number of pages: 44
Subjects: Pollen.
Notes: Bibliography: p. 44.
Thesis (doctoral)--Universität Bonn, 1887.
Cover title.