APA
Economist Interlligence Unit, Economist Interlligence Unit, . (1957). Economic geography of the commonwealth. : .
Chicago
Economist Interlligence Unit, Economist Interlligence Unit, . 1957. Economic geography of the commonwealth. : .
Harvard
Economist Interlligence Unit, Economist Interlligence Unit, . (1957). Economic geography of the commonwealth. : .
MLA
Economist Interlligence Unit, Economist Interlligence Unit, . Economic geography of the commonwealth. : . 1957.
