Παραπομπή APA

Higgin, G. (1973). Symptoms of tomorrow: Letters from a sociologist on the present state of society. London: Plume Press.

Παραπομπή Chicago Style

Higgin, Gurth. Symptoms of Tomorrow: Letters From a Sociologist On the Present State of Society. London: Plume Press, 1973.

Παραπομπή MLA

Higgin, Gurth. Symptoms of Tomorrow: Letters From a Sociologist On the Present State of Society. London: Plume Press, 1973.

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