Não informado. (1975). Plant Research and Development. Institute for Scientific Co-operation.
Chicago-Zitierstil (17. Ausg.)Não informado. Plant Research and Development. Tubingen, Alemanha: Institute for Scientific Co-operation, 1975.
MLA-Zitierstil (8. Ausg.)Não informado. Plant Research and Development. Institute for Scientific Co-operation, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.