APA (7th ed.) Citation

Mahler, P. (1990). An informix - 4GL tutorial. Prentice-Hall.

Chicago Style (17th ed.) Citation

Mahler, Paul. An Informix - 4GL Tutorial. Englewood Cliffs, N.J: Prentice-Hall, 1990.

MLA (9th ed.) Citation

Mahler, Paul. An Informix - 4GL Tutorial. Prentice-Hall, 1990.