http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Source and sink during the reproductive period of wheat
development and its regulation with special reference to cytokinins
"Zugleich Beiheft 8 zur Zeitschrift fur Acker- und Pflanzenbau."--Verso title page.
Fortschritte im Acker- und Pflanzenbau ; Heft 8