APA (7e ed.) Bronvermelding

Ryan, R. H. (1964). Georgetown; urban nucleation on the Texas Blacklands. Bureau of Business Research, University of Texas.

Chicago (17e ed.) Bronvermelding

Ryan, Robert H. Georgetown; Urban Nucleation on the Texas Blacklands. Austin: Bureau of Business Research, University of Texas, 1964.

MLA (8e ed.) Bronvermelding

Ryan, Robert H. Georgetown; Urban Nucleation on the Texas Blacklands. Bureau of Business Research, University of Texas, 1964.