Cita APA (7th ed.)

STRETTON, H. (1969). The political sciences: General principles of selection in social science and history. Routledge and Kegan Paul.

Cita Chicago (17th ed.)

STRETTON, Hugh. The Political Sciences: General Principles of Selection in Social Science and History. London,: Routledge and Kegan Paul, 1969.

Cita MLA (9th ed.)

STRETTON, Hugh. The Political Sciences: General Principles of Selection in Social Science and History. Routledge and Kegan Paul, 1969.