Cash, P. (1988). How to develop and write a research paper (2nd ed.). Arco.
Cita Chicago (17th ed.)Cash, Phyllis. How to Develop and Write a Research Paper. 2nd ed. New York: Arco, 1988.
Cita MLA (9th ed.)Cash, Phyllis. How to Develop and Write a Research Paper. 2nd ed. Arco, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.