Παραπομπή σε μορφή APA (7η εκδ.)
Crutchfield St. R., Feather P. M., & Hellerstein Daniel R. (1995). The Benefits of protecting rural water quality: An empirical analysis. United States. Department of Agriculture. Economic Research Service.
Παραπομπή σε μορφή Chicago (17η εκδ.)
Crutchfield St. R., Feather P. M., και Hellerstein Daniel R. The Benefits of Protecting Rural Water Quality: An Empirical Analysis. United States. Department of Agriculture. Economic Research Service, 1995.
Παραπομπή σε μορφή MLA (9th εκδ.)
Crutchfield St. R., et al. The Benefits of Protecting Rural Water Quality: An Empirical Analysis. United States. Department of Agriculture. Economic Research Service, 1995.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.