Babbie, E. Babbie's research writer cd-rom with chapter tutorial.
Cita Chicago (17th ed.)Babbie, Earl. Babbie's Research Writer Cd-rom with Chapter Tutorial. Wadsworth-Thompson.
Cita MLA (9th ed.)Babbie, Earl. Babbie's Research Writer Cd-rom with Chapter Tutorial.
Atenció: Aquestes cites poden no estar 100% correctes.