(1994). General Land Office automated records project. pre-1908 homestead & cash entry patents. [electronic resource]: Wisconsin.
Chicago (17e ed.) BronvermeldingGeneral Land Office Automated Records Project. Pre-1908 Homestead & Cash Entry Patents. [electronic Resource]: Wisconsin. 1994.
MLA (9e ed.) BronvermeldingGeneral Land Office Automated Records Project. Pre-1908 Homestead & Cash Entry Patents. [electronic Resource]: Wisconsin. 1994.
Let op: Deze citaties zijn niet altijd 100% accuraat.