To cite the 'manureshed' package in publications, use:

  Akanbi O, Mandayam V, Gupta A, Flynn K, Yarus J, Barcelos E, French R
  (2025). _manureshed: An Open-Source R Package for Scalable Temporal
  and Multi-Region Analysis of Integrated Agricultural-Municipal
  Nutrient Flows_. R package version 0.1.5, <https://osf.io/g39xa/>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {manureshed: An Open-Source R Package for Scalable Temporal and Multi-Region Analysis of Integrated Agricultural-Municipal Nutrient Flows},
    author = {Olatunde D. Akanbi and Vibha Mandayam and Arthava Gupta and K. C. Flynn and Jeffrey M. Yarus and Erika I. Barcelos and Roger H. French},
    year = {2025},
    note = {R package version 0.1.5},
    url = {https://osf.io/g39xa/},
  }

  Akanbi O, Gupta A, Mandayam V, Flynn K, Yarus J, Barcelos E, French R
  (2025). “Towards Circular Nutrient Economies: An Integrated
  Manureshed Framework for Agricultural and Municipal Resource
  Management.” _Resources, Conservation and Recycling_.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Towards Circular Nutrient Economies: An Integrated Manureshed Framework for Agricultural and Municipal Resource Management},
    author = {Olatunde D. Akanbi and Arthava Gupta and Vibha Mandayam and K. C. Flynn and Jeffrey M. Yarus and Erika I. Barcelos and Roger H. French},
    journal = {Resources, Conservation and Recycling},
    year = {2025},
  }

DATA SOURCES: NuGIS Agricultural Data (1987-2016): NuGIS (Nutrient Use
Geographic Information System), The Fertilizer Institute (TFI) and
Plant Nutrition Canada (PNC), https://nugis.tfi.org/tabular_data. EPA
WWTP Discharge Data (2007-2016): U.S. Environmental Protection Agency
(EPA), DMR Loading Tool, ECHO,
https://echo.epa.gov/trends/loading-tool/water-pollution-search.

For questions about data usage and attribution, contact NuGIS:
nugis@tfi.org, Package: olatunde.akanbi@case.edu