Kraus, R. G., & Curtis, J. E. (1982). Creative management in recration and parks (3rd ed.). C. V. Mosby.
Lua i Stíl Chicago (17ú heag.)Kraus, Richard G., agus Joseph E. Curtis. Creative Management in Recration and Parks. 3rd ed. St. Louis: C. V. Mosby, 1982.
Lua MLA (9ú heag.)Kraus, Richard G., agus Joseph E. Curtis. Creative Management in Recration and Parks. 3rd ed. C. V. Mosby, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.