Philippines (Repulic) Bureau of Private Schools & Paulsen, L. (1952). Memoranda, bulletins, circulars as issued from March 1945 to December 1951: A compilation. Catholic Trade School.
Chicago-viite (17. p.)Philippines (Repulic) Bureau of Private Schools ja Luis Paulsen. Memoranda, Bulletins, Circulars as Issued from March 1945 to December 1951: A Compilation. [Manila: Catholic Trade School, 1952.
MLA-viite (9. p.)Philippines (Repulic) Bureau of Private Schools ja Luis Paulsen. Memoranda, Bulletins, Circulars as Issued from March 1945 to December 1951: A Compilation. Catholic Trade School, 1952.
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