Citazione Stile APA (7a Edizione)
Johnson, L. M., & Duffek, K. (2008). Creating outdoor classrooms: Schoolyard habitats and gardens for the Southwest. University of Texas Press.
Citazione stile Chigago Style (17a edizione)
Johnson, Lauri Macmillan, e Kim Duffek. Creating Outdoor Classrooms: Schoolyard Habitats and Gardens for the Southwest. Austin: University of Texas Press, 2008.
Citatione MLA (9a ed.)
Johnson, Lauri Macmillan, e Kim Duffek. Creating Outdoor Classrooms: Schoolyard Habitats and Gardens for the Southwest. University of Texas Press, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.