NACHMIAS CHAVA. (1981). RESEARCH METHODS IN THE SOCIAL SCIENCES (2ND.). EDWARD ARNOLD.
Cita Chicago (17th ed.)NACHMIAS CHAVA. RESEARCH METHODS IN THE SOCIAL SCIENCES. 2ND. AUSTRALIA: EDWARD ARNOLD, 1981.
Cita MLA (9th ed.)NACHMIAS CHAVA. RESEARCH METHODS IN THE SOCIAL SCIENCES. 2ND. EDWARD ARNOLD, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.