Cita APA (7th ed.)

BLALOCK, H. M. (1981). Social statistics.-- ed.2. McGraw-hill international book co.

Cita Chicago (17th ed.)

BLALOCK, Hubert M. Social Statistics.-- Ed.2. Auckland: McGraw-hill international book co, 1981.

Cita MLA (9th ed.)

BLALOCK, Hubert M. Social Statistics.-- Ed.2. McGraw-hill international book co, 1981.