Alvarez, G. C., & Layo, L. L. (1978). An empirical analysis of selected access indicators. College of Business Administration, University of the Philippines.
Lua i Stíl Chicago (17ú heag.)Alvarez, Gabriel C., agus Leda L. Layo. An Empirical Analysis of Selected Access Indicators. Quezon City: College of Business Administration, University of the Philippines, 1978.
Lua MLA (9ú heag.)Alvarez, Gabriel C., agus Leda L. Layo. An Empirical Analysis of Selected Access Indicators. College of Business Administration, University of the Philippines, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.