APA (7th ed.) Citation

Ross, T., Lott, N., & Sittel, M. (1995). White Christmas? National Climatic Data Center, Research Customer Service Group.

Chicago Style (17th ed.) Citation

Ross, Tom, Neal Lott, and Matthew Sittel. White Christmas? [Asheville, N.C.]: National Climatic Data Center, Research Customer Service Group, 1995.

MLA (9th ed.) Citation

Ross, Tom, et al. White Christmas? National Climatic Data Center, Research Customer Service Group, 1995.