Cita APA (7th ed.)
Lester, J. D., Sr, & Lester, J. D., Jr. (2015). Writing research papers: A complete guide (15th ed.). Pearson.
Cita Chicago (17th ed.)
Lester, James D., Sr, i James D. Lester, Jr. Writing Research Papers: A Complete Guide. 15th ed. Boston: Pearson, 2015.
Cita MLA (9th ed.)
Lester, James D., Sr, i James D. Lester, Jr. Writing Research Papers: A Complete Guide. 15th ed. Pearson, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.