APA (7th ed.) Citation

Wertz, C. J., & Lefkovits, H. C. (1989). The data dictionary: Concepts and uses (2nd ed.). QED Information Sciences.

Chicago Style (17th ed.) Citation

Wertz, Charles J., and Henry C. Lefkovits. The Data Dictionary: Concepts and Uses. 2nd ed. Wellesley, Mass.: QED Information Sciences, 1989.

MLA (9th ed.) Citation

Wertz, Charles J., and Henry C. Lefkovits. The Data Dictionary: Concepts and Uses. 2nd ed. QED Information Sciences, 1989.