Babbie, E. R. (2008). The basics of social research (4th edition, international student edition.). Belmont, California: Thomson/Wadsworth.
استشهاد بنمط شيكاغوBabbie, Earl R. The Basics of Social Research. 4th edition, international student edition. Belmont, California: Thomson/Wadsworth, 2008.
MLA استشهادBabbie, Earl R. The Basics of Social Research. 4th edition, international student edition. Belmont, California: Thomson/Wadsworth, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.