Ueber die Substanzquotienten von Helianthus annuus
By: Paul Gressler
Contributors: Universität Bonn
Publisher: Foppen
Published: 1907
Place of publication: Bonn
Language: ger
Number of pages: 29
Notes: Vita.

Thesis (doctoral)--Rheinische Friedrich-Wilhelms-Universität Bonn, 1907.

Bibliography: p. i-ii.