APA

Seligman (Edwin R A), . (1937). Encyclopaedia Of The Social Sciences. : .

Chicago

Seligman (Edwin R A), . 1937. Encyclopaedia Of The Social Sciences. : .

Harvard

Seligman (Edwin R A), . (1937). Encyclopaedia Of The Social Sciences. : .

MLA

Seligman (Edwin R A), . Encyclopaedia Of The Social Sciences. : . 1937.