APA

United States Departament of Agriculture, .A nursery guide for the production of bareroot hardwood seedlings. : .

Chicago

United States Departament of Agriculture, .A nursery guide for the production of bareroot hardwood seedlings. : .

Harvard

United States Departament of Agriculture, .A nursery guide for the production of bareroot hardwood seedlings. : .

MLA

United States Departament of Agriculture, .: . .