共 35 条
[11]
HARRIS CD, 1952, BIBLIO GEOGRAPHY MAN
[13]
HAYES M, 1950, MONTHLY LABOR REV, V71, P106
[15]
KITAGAWA EM, 1955, STUDIES POPULATION D, V9, P11
[16]
KUBE HD, 1942, CHANGES DISTRIBUTION
[17]
MCCARTY HH, 1930, IOWA STUDIES BUSINES, V7, P11
[18]
MCDONALD DM, 1937, SELECT BIBLIO LOCATI
[20]
MURPHY RE, 1953, PROFESSIONAL GEOGRAP, V5, P4