SAMPATH S. (2005). SAMPLING THEORY AND METHODS (2ND.). NAROSA PUBLISHING HOUSE.
芝加哥风格引文SAMPATH S. SAMPLING THEORY AND METHODS. 2ND. NEW DELHI: NAROSA PUBLISHING HOUSE, 2005.
MLA引文SAMPATH S. SAMPLING THEORY AND METHODS. 2ND. NAROSA PUBLISHING HOUSE, 2005.
警告：这些引文格式不一定是100％准确.