APA Edition Citation

Erlank, S., & Levin, C. (1998). Official Powerbuilder 6 fundamentals.- 2nd ed. , (2nd ed. ,.). Comdex computer publishing.

Chicago Edition Citation

Erlank, Steve, and Craig Levin. Official Powerbuilder 6 Fundamentals.- 2nd Ed. ,. 2nd ed. ,. New Delhi: Comdex computer publishing, 1998.

MLA Edition Citation

Erlank, Steve, and Craig Levin. Official Powerbuilder 6 Fundamentals.- 2nd Ed. ,. 2nd ed. ,. Comdex computer publishing, 1998.