DeRaps, P. K. (1992). Women's perceptions of tubal ligation. U.M.I..
Chicago Style aipamenaDeRaps, Penny Kaarina. Women's Perceptions of Tubal Ligation. Ann Arbor, MI.: U.M.I., 1992.
MLA aipamenaDeRaps, Penny Kaarina. Women's Perceptions of Tubal Ligation. U.M.I., 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.