Howard, P. B. (1991). A content analysis of newspaper portrayal of abortion topics, January 1, 1986 to December 31, 1986. UMI Dissertation Information Services.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHoward, Perla Buhay. A Content Analysis of Newspaper Portrayal of Abortion Topics, January 1, 1986 to December 31, 1986. Ann Arbor, MI: UMI Dissertation Information Services, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHoward, Perla Buhay. A Content Analysis of Newspaper Portrayal of Abortion Topics, January 1, 1986 to December 31, 1986. UMI Dissertation Information Services, 1991.
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