共 99 条
[71]
TOSTLEBE AS, 1957, CAPITAL AGRICULTURE
[72]
TOWNE MW, 1960, TRENDS AM ECONOMY NI
[73]
United States Bureau of the Census, 1923, MORT RAT 1910 1920
[74]
*US BUR CENS, MORT RAT 1910 1920
[75]
*US CENS OFF, 83 CENS B
[76]
*US CENS OFF, 1885, MORT VIT STAT, V1, pR18
[77]
*US CENS OFF, 1886, MORT VIT STAT, V2
[78]
*US CENS OFF, 1872, VIT STAT US
[79]
*US CENS OFF, 1901, 83 CENS B
[80]
*US IND COMM, 10 REP