Doby, J. T. (1954). An introduction to social research. The Stackpole Company.
Cita Chicago (17th ed.)Doby, John T. An Introduction to Social Research. Harrisburg, Pennsylvania: The Stackpole Company, 1954.
Cita MLA (8th ed.)Doby, John T. An Introduction to Social Research. The Stackpole Company, 1954.
Atenció: Aquestes cites poden no estar 100% correctes.