APA (7th ed.) Citation

Girdler, S., Packer, T., & Boldy, D. (2008). The Impact of Age-Related Vision Loss. Slack Incorporated.

Chicago Style (17th ed.) Citation

Girdler, Sonya, Tanya Packer, and Duncan Boldy. The Impact of Age-Related Vision Loss. Slack Incorporated, 2008.

MLA (9th ed.) Citation

Girdler, Sonya, et al. The Impact of Age-Related Vision Loss. Slack Incorporated, 2008.