Παραπομπή APA

Frost, R. (1961). Backward society. Longmans green and company limited.

Παραπομπή Chicago Style

Frost, Raymond. Backward Society. London: Longmans green and company limited, 1961.

Παραπομπή MLA

Frost, Raymond. Backward Society. Longmans green and company limited, 1961.