Cita APA (7th ed.)

Roldan, A. S., & Ilano, E. (2008). Introduction to hotel and front office operations. AR Skills Development & Management Services.

Cita Chicago (17th ed.)

Roldan, Amelia S., i Erlinda Ilano. Introduction to Hotel and Front Office Operations. Paranaque: AR Skills Development & Management Services, 2008.

Cita MLA (9th ed.)

Roldan, Amelia S., i Erlinda Ilano. Introduction to Hotel and Front Office Operations. AR Skills Development & Management Services, 2008.