F. L. Sweetser

发表

Factorial ecology: Helsinki, 1960

F. L. Sweetser, 1965, Demography.

Factor Structure as Ecological Structure in Helsinki and Boston

F. L. Sweetser, 1965 .

Metropolitan and regional social ecology of Helsinki

F. L. Sweetser, 1973 .

The uses of factorial ecology in classification

F. L. Sweetser, 1974 .