共 65 条
[1]
Animal and Plant Health Inspection Service USDA, 2016, Federal Register, V81, P33581
[2]
[Anonymous], 1991, GAO/NSIAD-91-94BR
[3]
[Anonymous], 2020, Congressional Research Service, R43026, P1
[4]
[Anonymous], Quick Stats
[5]
[Anonymous], 2017 Census by State-Nebraska
[7]
Bier D.J., 2020, Cato Institute, Immigration Research and Policy Brief, V17, P1
[8]
Biswas T., 2018, EDIS, P1
[9]
Blue Book Services, KNOW YOUR COMM GUID
[10]
Canales E., 2019, Choices, V34, P1, DOI DOI 10.22004/AG.ECON.292354