"U.S. Bureau of the Census, International Data Base"
 
"Table 088. Heads of Households, by Age, Sex, and Urban/Rural Residence"
"----------------","-------------","-------------","-------------"
"Country or area/"," "," "," "
"Year/ "," "," "," "
"Res/ "," "," "," "
"Age "," Both sexes"," Male"," Female"
"----------------","-------------","-------------","-------------"
"Guam/1950/Total"
 
"Total, all ages ", 7373, (NA), (NA)
 
"Guam/1960/Total"
 
"Total, all ages ", 10830, (NA), (NA)
"----------------","-------------","-------------","-------------"
"Source: U.S. Bureau of the Census, International" 
" Data Base."