APA (7th ed.) Citation

Smith, M. A., Wilt, D. E., & Erickson, J. B. (1997). Encyclopedia of physical sciences and engineering information sources (2nd ed.). Gale Research.

Chicago Style (17th ed.) Citation

Smith, Martin A., David E. Wilt, and Judith B. Erickson. Encyclopedia of Physical Sciences and Engineering Information Sources. 2nd ed. Detroit, MI: Gale Research, 1997.

MLA (9th ed.) Citation

Smith, Martin A., et al. Encyclopedia of Physical Sciences and Engineering Information Sources. 2nd ed. Gale Research, 1997.