Gonzalez, A., & Del Corro, A. (1978). Doctoral programs in Philippine universities. s.n.] (Manila Printed for the Research Council of De La Salle University by United Publishing).
Chicago-referens (17:e uppl.)Gonzalez, Andrew, och Anicia Del Corro. Doctoral Programs in Philippine Universities. [S.l: s.n.] (Manila Printed for the Research Council of De La Salle University by United Publishing), 1978.
MLA-referens (9:e uppl.)Gonzalez, Andrew, och Anicia Del Corro. Doctoral Programs in Philippine Universities. s.n.] (Manila Printed for the Research Council of De La Salle University by United Publishing), 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.