APA
United State G. O. . C. (. O. C. (. O., United State G. O. . C. (. O. C. (. O., . (1969). Pocket data book. Washington: Government Printing Office.
Chicago
United State Government Of Commerce (Department Of-) Census (Bareau Of-), United State Government Of Commerce (Department Of-) Census (Bareau Of-), . 1969. Pocket data book. Washington: Government Printing Office.
Harvard
United State G. O. . C. (. O. C. (. O., United State G. O. . C. (. O. C. (. O., . (1969). Pocket data book. Washington: Government Printing Office.
MLA
United State Government Of Commerce (Department Of-) Census (Bareau Of-), United State Government Of Commerce (Department Of-) Census (Bareau Of-), . Pocket data book. Washington: Government Printing Office. 1969.
