Anthony C Winkler. (2000). Writing the research paper: Pocket guide. Fort Worth: Harcourt College.
Chicago Style aipamenaAnthony C Winkler. Writing the Research Paper: Pocket Guide. Fort Worth: Harcourt College, 2000.
MLA aipamenaAnthony C Winkler. Writing the Research Paper: Pocket Guide. Fort Worth: Harcourt College, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.