Gaya APA

Costa, H, D, L. (2002). Selected writings of his youth,1927-1945 Compiled and edited by Roberto M. Paterno Message by Jaime L. Sin. Foreword by Romeo J. Intengan. . Manila: Manila 2B3C Foundation.

Gaya MLA

Costa, Horacio, De, La. "Selected writings of his youth,1927-1945 Compiled and edited by Roberto M. Paterno Message by Jaime L. Sin. Foreword by Romeo J. Intengan. ". Manila: Manila 2B3C Foundation, 2002. Buku.