APA (7th ed.) Citation

Hay, B., Heath, E. H., Mills, A. S., Pugh, D. L., & Shea, C. H. (1985). An analysis of the multiple recreation activity day trip.

Chicago Style (17th ed.) Citation

Hay, Brian, E. H. Heath, A. S. Mills, D. L. Pugh, and C. H. Shea. An Analysis of the Multiple Recreation Activity Day Trip. 1985.

MLA (9th ed.) Citation

Hay, Brian, et al. An Analysis of the Multiple Recreation Activity Day Trip. 1985.