Tabucol, O. B., & Guevarra, S. V. (2013). Environmental management practices of selected hotels in Metro Manila. College of Home Economics, University of the Philippines Diliman.
Lua i Stíl Chicago (17ú heag.)Tabucol, Olivia Barbosa, agus Shirley V. Guevarra. Environmental Management Practices of Selected Hotels in Metro Manila. Quezon City: College of Home Economics, University of the Philippines Diliman, 2013.
Lua MLA (9ú heag.)Tabucol, Olivia Barbosa, agus Shirley V. Guevarra. Environmental Management Practices of Selected Hotels in Metro Manila. College of Home Economics, University of the Philippines Diliman, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.