APA (7th ed.) Citation

Blackburn, J. V., Gardner, J. R., Hodges, L., Kamp, B. D., & Klatt, F. (1981). Citizen perceptions of appropriate levels of maintenance for parks in a major metropolitan area.

Chicago Style (17th ed.) Citation

Blackburn, John Vernon, James R. Gardner, Louis Hodges, B. Dan Kamp, and Fred Klatt. Citizen Perceptions of Appropriate Levels of Maintenance for Parks in a Major Metropolitan Area. 1981.

MLA (9th ed.) Citation

Blackburn, John Vernon, et al. Citizen Perceptions of Appropriate Levels of Maintenance for Parks in a Major Metropolitan Area. 1981.