9th=Ninth> Librarian's Conference-Workshop (1969 : Laoag City). (1969). Improved library service for national progress: [papers of the 9th] Librarians' Seminar-Workshop [held in] Laog City, April 13-16, 1969.
Citace podle Chicago (17th ed.)9th=Ninth> Librarian's Conference-Workshop (1969 : Laoag City). Improved Library Service for National Progress: [papers of the 9th] Librarians' Seminar-Workshop [held in] Laog City, April 13-16, 1969. Laoag City, 1969.
Citace podle MLA (9th ed.)9th=Ninth> Librarian's Conference-Workshop (1969 : Laoag City). Improved Library Service for National Progress: [papers of the 9th] Librarians' Seminar-Workshop [held in] Laog City, April 13-16, 1969. 1969.
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