Gaya APA

Swanson, C, P. (1975). Catalog supplement 2 1975 food and nutrition information and educational ì materials center . Maryland: Maryland: U.S Departement of agriculture; 1975.

Gaya MLA

Swanson, Carl, P.. "Catalog supplement 2 1975 food and nutrition information and educational ì materials center". Maryland: Maryland: U.S Departement of agriculture; 1975, 1975. Text.