Jackson, C. J. (1976). A drug knowledge survey of two groups of ninth-grade students of Wagner High School, Clark Air Base, Philippines [microform]. Photoduplication Service. University of the Philippines Library.
Chicago-viite (17. p.)Jackson, Charles J. A Drug Knowledge Survey of Two Groups of Ninth-grade Students of Wagner High School, Clark Air Base, Philippines [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.
MLA-viite (9. p.)Jackson, Charles J. A Drug Knowledge Survey of Two Groups of Ninth-grade Students of Wagner High School, Clark Air Base, Philippines [microform]. Photoduplication Service. University of the Philippines Library, 1976.
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