Citazione Stile APA (7a Edizione)

Sternloff, R. E., & Warren, R. (1977). Park and recreation maintenance management. Holbrook Press.

Citazione stile Chigago Style (17a edizione)

Sternloff, Robert E., e Roger Warren. Park and Recreation Maintenance Management. Boston: Holbrook Press, 1977.

Citatione MLA (9a ed.)

Sternloff, Robert E., e Roger Warren. Park and Recreation Maintenance Management. Holbrook Press, 1977.