Cita APA

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

Citación estilo Chicago

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

Cita MLA

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