Blalock, H. M. (1970). An introduction to social research. Prentice-Hall.
Cita Chicago Style (17a ed.)Blalock, Hubert M. An Introduction to Social Research. Englewood Cliffs, New Jersey: Prentice-Hall, 1970.
Cita MLA (9a ed.)Blalock, Hubert M. An Introduction to Social Research. Prentice-Hall, 1970.
Precaución: Estas citas no son 100% exactas.