Cita APA (7th ed.)

Alba, M. M. C., Andes, E. J. T., Fortuna, A. L., & Millares, R. S. G. (1998). VRTOOL: The virtual reality modeling language integrating tool.

Cita Chicago (17th ed.)

Alba, Ma Margarita C., Elmer Jr. T. Andes, Amilcar L. Fortuna, i Rino Samuel G. Millares. VRTOOL: The Virtual Reality Modeling Language Integrating Tool. 1998.

Cita MLA (9th ed.)

Alba, Ma Margarita C., et al. VRTOOL: The Virtual Reality Modeling Language Integrating Tool. 1998.