Файл:Redbook-1977-1978 (67GA).pdf1977-78 entry in the "Iowa Official Register" series of publications by the State of Iowa. Date 1977 Source https://www.legis.iowa.gov/DOCS/Shelves/Red
Файл:Redbook-1987-1988 (72GA).pdf1987-88 entry in the "Iowa Official Register" series of publications by the State of Iowa. Date 1987 Source https://www.legis.iowa.gov/DOCS/Shelves/Red
Файл:Redbook-1900 (28GA).pdfthe 1900 entry in the "Iowa Official Register" series of publications by the State of Iowa. Date 1900 Source https://www.legis.iowa.gov/DOCS/Shelves/Red
Файл:Redbook-1973-1974 (65GA).pdf1973-74 entry in the "Iowa Official Register" series of publications by the State of Iowa. Date 1973 Source https://www.legis.iowa.gov/DOCS/Shelves/Red