APA (7th ed.) Citation

Roehl, J. (1998). Evaluation of the Weed and Seed Initiative in the United States, 1994. [Verlag nicht ermittelbar]. https://doi.org/10.3886/ICPSR06789.v1

Chicago Style (17th ed.) Citation

Roehl, Jan. Evaluation of the Weed and Seed Initiative in the United States, 1994. [Erscheinungsort nicht ermittelbar]: [Verlag nicht ermittelbar], 1998. https://doi.org/10.3886/ICPSR06789.v1.

MLA (9th ed.) Citation

Roehl, Jan. Evaluation of the Weed and Seed Initiative in the United States, 1994. [Verlag nicht ermittelbar], 1998. https://doi.org/10.3886/ICPSR06789.v1.