APA (7th ed.) Citation

Burridge, J. D. . [., Peggs, K. ., & Smart, B. (2013). Observation methods. SAGE Publications.

Chicago Style (17th ed.) Citation

Burridge, Joseph D. [], Kay Peggs, and Barry Smart. Observation Methods. Thousand Oaks, California: SAGE Publications, 2013.

MLA (9th ed.) Citation

Burridge, Joseph D. [], et al. Observation Methods. SAGE Publications, 2013.