Mason, E. J., & Bramble William J. (1989). Understanding and conducting research: Applications in education and the behavioral sciences (2nd ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Mason, Emanuel J., agus Bramble William J. Understanding and Conducting Research: Applications in Education and the Behavioral Sciences. 2nd ed. New York: McGraw-Hill, 1989.
Lua MLA (9ú heag.)Mason, Emanuel J., agus Bramble William J. Understanding and Conducting Research: Applications in Education and the Behavioral Sciences. 2nd ed. McGraw-Hill, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.