Cita APA (7th ed.)
Ballard, C., Da Silva, V., Farrell, D. M., Koerner, A., & Sayles, J. (2005). Transitioning: Informix 4GL to enterprise generation language (EGL). IBM.
Cita Chicago (17th ed.)
Ballard, Chuck, Vlaunir Da Silva, Daniel M. Farrell, Alexander Koerner, i Jonathan Sayles. Transitioning: Informix 4GL to Enterprise Generation Language (EGL). San Jose, CA: IBM, 2005.
Cita MLA (9th ed.)
Ballard, Chuck, et al. Transitioning: Informix 4GL to Enterprise Generation Language (EGL). IBM, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.