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-referens (17:e uppl.)Philippines (Repulic) Bureau of Private Schools och Luis Paulsen. Memoranda, Bulletins, Circulars as Issued from March 1945 to December 1951: A Compilation. [Manila: Catholic Trade School, 1952.
MLA-referens (9:e uppl.)Philippines (Repulic) Bureau of Private Schools och Luis Paulsen. Memoranda, Bulletins, Circulars as Issued from March 1945 to December 1951: A Compilation. Catholic Trade School, 1952.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.