APA (7th ed.) Citation

Jahnke, K., Sanchez, S., & Haeussler, B. (2004). Skywalking GEMS and UDF.

Chicago Style (17th ed.) Citation

Jahnke, K., S. Sanchez, and B. Haeussler. Skywalking GEMS and UDF. 2004.

MLA (9th ed.) Citation

Jahnke, K., et al. Skywalking GEMS and UDF. 2004.